0001185185-26-002997 | 10-K | XBRL Viewer | Frequency Electronics INC

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Product Warranties - Schedule of Product Warranty Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Schedule Of Product Warranty Liability Abstract
Balance at beginning of year	$ 567	$ 542
Warranty costs incurred	(438)	(253)
Product warranty accrual	388	278
Balance at end of year	$ 517	$ 567

Property, Plant and Equipment, Net (Details) - USD ($)	12 Months Ended
Property, Plant and Equipment, Net (Details) - USD ($)	Apr. 30, 2026	Apr. 30, 2025
Property, Plant, and Equipment [Abstract]
Depreciation	$ 1,900,000	$ 2,100,000
Property plant and equipment retired assets written off	28,900,000
Property, Plant, and Equipment, Other, Accumulated Depreciation	$ 0

Contract Assets and Liabilities

12 Months Ended

Apr. 30, 2026

Contractors [Abstract]

Long-Term Contracts or Programs Disclosure [Text Block]

3. Contract Assets and Liabilities

At April 30, 2026, 2025, and 2024, contract assets, contract liabilities, and accounts receivable, net consisted of the following (in thousands):

	April 30, 2026			April 30, 2025			April 30, 2024

Contract Assets	$	17,277		$	17,914		$	10,523
Contract Liabilities	$	(9,418	)	$	(13,607	)	$	(21,639	)
Accounts receivable, net	$	4,740		$	5,914		$	4,614

Contract assets primarily relate to the Company’s rights to consideration for work completed but not billed at the reporting date on contracts with customers. Contract assets are transferred to accounts receivable when the rights become unconditional. Contract liabilities primarily relate to contracts where advance payments or deposits have been received, but performance obligations have not yet been satisfied, and therefore, revenue has not been recognized. Contract assets and liabilities arise from timing differences between the satisfaction of performance obligations which primarily occur over time as costs are incurred on the contract and billing which are dictated by the terms of the contract with the customer. Contract assets decreased $0.6 million in fiscal year 2026, as a result of reclassifications to accounts receivable when the right to consideration becomes unconditional, net of additional rights to consideration for work completed but not billed to customers at the reporting date. Contract liabilities decreased $4.2 million during fiscal year 2026, primarily due to the satisfaction of the related performance obligations, net of advance payments received where the related performance obligations have not been satisfied at the reporting date. In fiscal year 2026, we recognized $9.3 million of our contract liabilities at April 30, 2025, as revenue. In fiscal year 2025, we recognized $18.3 million of our contract liabilities at April 30, 2024, as revenue. If contract losses are anticipated, a loss provision is recorded for the full amount of such losses when they are determinable. The liability for contract losses is presented as loss provision accrual within the consolidated balance sheets.

- Definition

The entire disclosure for long-term contracts or programs.

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+ Details

Earnings Per Share

12 Months Ended

Apr. 30, 2026

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

2. Earnings per Share

Reconciliations of the weighted average shares outstanding for basic and diluted earnings per share for the fiscal years ended April 30, 2026 and 2025, respectively, were as follows:

	For the Fiscal Years Ended April 30,
	2026		2025
Weighted average shares outstanding:
Basic EPS Shares outstanding (weighted average)		9,783,358		9,611,914
Effect of Dilutive Securities		**		2,622
Diluted EPS Shares outstanding		9,783,358		9,614,536

For the fiscal year ended April 30, 2026, there were no shares to exclude from the calculation of dilutive securities. There were no shares excluded for the fiscal year ended April 30, 2025.

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Schedule Of Deferred Tax Assets And Liabilities Abstract
Employee benefits	$ 2,901	$ 2,810
Inventory	4,081	2,876
Accounts receivable	95	144
Tax credits	2,111	1,945
Property, plant and equipment	87	0
Deferred costs	1,355	1,511
Lease liability	1,898	2,128
Capital loss carry-forward	176	194
Research & development	1,693	2,247
Net operating loss carryforwards	3,649	2,276
Other assets	305	301
Total deferred tax asset	18,351	16,432
Property, plant and equipment	0	(74)
Right of use asset	(1,838)	(2,104)
Other liabilities	(177)	(77)
Deferred state income tax	(897)	(779)
Net deferred tax asset	15,439	13,398
Valuation allowance	(1,355)	(1,353)
Net deferred tax asset	$ 14,084	$ 12,045

Segment Information - Schedule of Depreciation and amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Depreciation and amortization:
Depreciation and amortization	$ 1,893	$ 2,055
Frequency Electronics Inc New York [Member]
Depreciation and amortization:
Depreciation and amortization	1,799	1,932
Frequency Electronics Inc Zyfer [Member]
Depreciation and amortization:
Depreciation and amortization	94	123
Corporate Segment [Member]
Depreciation and amortization:
Depreciation and amortization	$ 0	$ 0

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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+ Details

Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Schedule Of Property Plant And Equipment Abstract
Buildings and building improvements	$ 3,325	$ 2,923
Machinery, equipment and furniture	36,915	63,347
Property, plant and equipment, gross total	40,240	66,270
Less accumulated depreciation	(33,135)	(60,082)
Property, plant, and equipment, net	$ 7,105	$ 6,188

- Definition

Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

+ References + Details

- Definition

Amount, after accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

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+ Details

Accrued Liabilities

12 Months Ended

Apr. 30, 2026

Payables and Accruals [Abstract]

Accounts Payable and Accrued Liabilities Disclosure [Text Block]

8. Accrued Liabilities

Accrued liabilities at April 30, 2026 and 2025, respectively, consisted of the following (in thousands):

	2026		2025
Vacation and other compensation	$	1,822	$	1,575
Incentive compensation		191		1,347
Payroll taxes		665		712
Warranty reserve		517		567
Commissions		19		24
Deferred compensation payable		634		634
Other		2,634		1,040
	$	6,482	$	5,899

Accounting Policies, by Policy (Policies)

12 Months Ended

Apr. 30, 2026

Accounting Policies [Abstract]

Organization [Policy Text Block]

Organization

The Company is principally engaged in the design, development and manufacture of precision time and frequency control products and components for microwave integrated circuit applications.

Basis of Accounting, Policy [Policy Text Block]

Basis of Presentation and Principles of Consolidation:

The consolidated financial statements include the accounts of Frequency Electronics, Inc. and its wholly-owned subsidiaries (the “Company” or “Registrant”). References to “FEI” are to the parent company alone and do not refer to any of its subsidiaries. See Note 13 for information regarding the Company’s business segments: (1) FEI-NY (which includes the subsidiaries FEI Government Systems, Inc., FEI Communications, Inc., and until April 30, 2026, included FEI-Elcom Tech, Inc. (“FEI-Elcom”)), and (2) FEI-Zyfer, Inc. (“FEI-Zyfer”). Effective as of April 30, 2026, FEI-Elcom converted into a Delaware limited liability company; however, the ongoing business operations of FEI-Elcom will continue under the FEI-NY segment. For more information regarding the Company’s restructuring, see “Restructuring” below. Intercompany accounts and transactions are eliminated in consolidation.

Use of Estimates, Policy [Policy Text Block]

Use of Estimates:

These consolidated financial statements have been prepared in conformity with United States generally accepted accounting principles (“U.S. GAAP”) and require management to make estimates and assumptions that affect amounts reported and disclosed in the consolidated financial statements and related notes. Actual results could differ from these estimates. Significant estimates include, but are not limited to, accounting for revenue recognition using a cost-to-cost input model, inventory reserves, deferred compensation plans, impairment of goodwill and other long-lived assets, stock-based compensation, and income taxes including deferred income taxes.

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash Equivalents:

The Company considers certificates of deposit and other highly liquid investments with maturities of three months or less when purchased to be cash equivalents. The Company places its temporary cash investments with high credit quality financial institutions. Such investments may at times be in excess of the Federal Deposit Insurance Corporation (“FDIC”) and Securities Investor Protection Corporation insurance limits. No losses have been experienced on such investments.

Receivable [Policy Text Block]

Accounts Receivable and Allowance for Credit Losses:

Accounts receivable, net, consists of amounts collectible from customers recorded at the original invoiced amount. Management analyzes accounts receivable and the potential for credit losses based on customer concentrations, credit worthiness, current economic trends and changes in customer payment terms. Accounts receivable are recorded at their stated amount, less allowance for credit losses. When it is determined amounts are not recoverable, the receivable is written off against the allowance.

Property, Plant, and Equipment [Policy Text Block]

Property, Plant and Equipment:

Property, plant and equipment is recorded at cost, net of accumulated depreciation and amortization. Expenditures for betterments are capitalized; maintenance and repairs are charged to operations when incurred. When fixed assets are sold or retired, the cost and related accumulated depreciation and amortization are eliminated from the respective accounts and any gain or loss is credited or charged to operations.

If events or changes in circumstances indicate that the carrying amount of a long-lived asset may not be recoverable, the Company estimates the future cash flows expected to result from the use of the asset and its eventual disposition. If the sum of the expected future cash flows (undiscounted and without interest charges) is less than the carrying amount of the long-lived asset, an impairment loss is recognized based on the excess of the carrying amount over the fair value of the long-lived asset. No impairment losses have been recognized in the years ended April 30, 2026 and 2025.

Depreciation, Depletion, and Amortization [Policy Text Block]

Depreciation and Amortization:

Depreciation of property, plant and equipment is computed on the straight-line method based upon the estimated useful lives of the assets (40 years for buildings and 3 to 10 years for machinery, equipment, furniture, and other depreciable assets). Leasehold improvements are amortized on the straight-line method over the lesser of the lease term or the estimated useful life of the asset.

Inventory, Policy [Policy Text Block]

Inventories:

Inventories, which consist of raw materials, work-in-process and finished goods are stated at the lower of cost or net realizable value, with cost determined on the first-in, first-out method. The cost of work-in-process and finished goods generally include the cost of materials, labor, overhead and other costs that are directly related to their production. The Company reviews its inventories quarterly to determine reserves for excess or obsolete inventory based upon historical sales trends, expected production usage, and other factors. Changes to inventory are charged to cost of revenues in the period when such changes are identified.

Inventories represent raw materials, work-in-process, and finished goods that relate to non-customized products sold to customers at a point in time. Inventories also represent raw materials and in-process and completed components parts that are used in multiple customer projects but have not been allocated to a specific customer project or incorporated in the creation of customized products that are sold to specific customers over a period of time.

Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]

Goodwill:

The Company records goodwill as the excess of purchase price over the fair value of identifiable net assets acquired. The Company performs a qualitative evaluation of events and circumstances impacting each reporting unit to determine the likelihood of goodwill impairment. Based on this evaluation, if it is determined that it is more likely than not that the fair value of a reporting unit exceeds its carrying amount, no further evaluation is necessary. Otherwise, the Company will perform a quantitative impairment test to compare the fair value of a reporting unit to its carrying value, including goodwill. If the fair value of a reporting unit exceeds its carrying value, goodwill of the reporting unit is not impaired. If the carrying value of the reporting unit, including goodwill, exceeds its fair value, a goodwill impairment loss will be recognized in an amount equal to that excess. Due to the restructuring of FEI-Elcom at April 30, 2026 goodwill has been written down in full. Management has determined that goodwill was not impaired as of April 30, 2025, based on its qualitative assessment of impairment for the period.

Revenue [Policy Text Block]

Revenue and Cost Recognition:

Revenue is recognized when or as performance obligations are satisfied, which is when control over goods or services are transferred to the customer, in an amount that reflects the consideration to which the Company expects to receive. A performance obligation is a distinct product or service that is transferred to the customer based on the contract. The transaction price is allocated to each performance obligation and is recognized as revenue upon satisfaction of that performance obligation.

The Company derives a majority of its revenue through contracts with customers that involve the sale of goods and services with specifications, frequencies and significant customization to address the requirements of a specific customer and contracts where the end user is the U.S. Government. These contracts generally include one performance obligation, which is typically a customized product or a series of distinct customized products. Control over this performance obligation transfers to the customer over time as the Company creates the customized product because such product does not have an alternative use to the Company and the contract provides the Company with an enforceable right to payment for performance completed to date. In certain cases, the customer also controls the product as it is being created by the Company. Accordingly, revenue is reported in operating results over time using the percentage-of-completion (“POC”) cost-to-cost method. Under this method, revenue is recorded based on the ratio of costs incurred over total estimated contract costs. This method provides a faithful depiction of the transfer of the customized product to the customer because the costs incurred represent the Company’s inputs towards satisfying the performance obligation. Each month management reviews estimated contract costs through a process of aggregating actual costs incurred and estimating additional costs to complete based on current available information, project status, historical experience with similar contracts, changes to product specifications, and other factors. The estimation of total costs through completion is complicated and subject to many variables. Total cost estimates can be affected by a number of factors such as changes in the assessment of the nature and complexity of the work; design challenges including changes to design specifications; technical challenges including those related to quality control; production challenges including those resulting from the timeliness of customer funding, and the unavailability or reduced productivity of qualified labor; supplier challenges including the cost, availability, and quality of raw materials and subcontractor services; changes in laws or regulations; actions necessary for long-term customer satisfaction; and natural disasters or other matters. Changes in these cost estimates could result in the recognition of unfavorable cumulative catch-up adjustments to the Company’s operating results of the period when such changes are made. Costs to satisfy the performance obligation, which include direct materials, direct labor, manufacturing overhead and other direct costs, are expensed as incurred except when the Company determines that the total estimated costs through completion will exceed total revenue, resulting in a contract loss. Such contract loss is accrued for immediately in the period when the loss is identified.

The Company also derives its revenue through contracts or purchase orders from customers that involve the sale of goods and services that are not significantly customized and therefore, such goods and services have an alternative use to the Company because they can be resold to other customers. These contracts typically include one performance obligation, which is a non-customized product or service ordered by the customer. Control over this performance obligation transfers to the customer and revenue is recorded at a point time when passage-of-title (“POT”) occurs as reflected by either (i) shipment of the product or (ii) performance of the services, which are generally completed within a very short period. When payment is contingent upon customer acceptance, revenue is deferred until such acceptance is received. Costs directly related to the production of a non-customized product are capitalized in inventory and are generally expensed when the product is shipped to or accepted by the customer. Cost of services are expensed as incurred.

Contract costs include all direct material costs, direct labor costs, manufacturing overhead and other direct costs related to contract performance. Selling, general and administrative costs are charged to expense as incurred.

Practical Expedients

The Company expenses sales commissions as sales and marketing expenses in the period they are incurred if the expected amortization period is one year or less.

The Company expenses costs, other than sales commissions, to obtain a contract in the period for which they are incurred as these amounts would have been incurred even if the contract had not been obtained.

The Company elected the practical expedient to account for shipping and handling activities that occur after the customer has obtained control of a good as fulfillment activities rather than as a promised service.

The Company elected the practical expedient not to disclose the transaction price allocated to the remaining performance obligations because the duration of the Company’s contracts is typically one year or less in consideration of the customer’s option to terminate its contract for convenience without incurring a substantive termination penalty.

Payments under long-term contracts may be received before or after revenue is recognized. The U.S. Government customer typically withholds payment of a small portion of the contract price until contract completion. Therefore, long-term contracts typically generate unbilled receivables (contract assets) but may generate advances and progress billings (contract liabilities). Long-term contracts are typically negotiated with a schedule of milestones, with criteria to be met, which are billed on completion. Long-term contract unbilled receivables and advances and progress billings are not considered a significant financing component because they are intended to protect either the customer or the Company in the event that some or all of the obligations under the contract are not completed. In addition, the Company does not assess whether a significant financing component exists if the period between when the Company performs its obligations under the contract and when the customer pays is one year or less.

Disaggregation of Revenue

Total revenue recognized over time using the POC method was approximately $57.7 million and $65.8 million of the $63.2 million and $69.8 million reported for the years ended April 30, 2026 and 2025, respectively. The amounts by segment and product line were as follows:

	Fiscal Year Ended April 30, 2026
	(In thousands)
	POC Revenue		POT Revenue			Total Revenue
FEI-NY	$	40,263	$	5,388		$	45,651
FEI-Zyfer		17,421		4,310			21,731
Intersegment		-		(4,155	)		(4,155	)
Revenue	$	57,684	$	5,543		$	63,227

	Fiscal Year Ended April 30, 2025
	(In thousands)
	POC Revenue		POT Revenue			Total Revenue
FEI-NY	$	49,585	$	3,684		$	53,269
FEI-Zyfer		16,206		2,454			18,660
Intersegment		-		(2,118	)		(2,118	)
Revenue	$	65,791	$	4,020		$	69,811

	Fiscal Years Ended April 30,
	(in thousands)
	2026		2025
Revenues by Product Line:
Satellite revenue	$	23,128	$	40,897
Government non-space revenue		38,011		26,549
Other commercial & industrial revenue		2,088		2,365
Consolidated revenues	$	63,227	$	69,811

Research and Development Expense, Policy [Policy Text Block]

Research and Development:

The Company engages in R&D activities to identify new applications for its core technologies, to improve existing products and to improve manufacturing processes to achieve cost reductions and manufacturing efficiencies. R&D costs include basic research, applied research, concept formulation studies, design, development, related test activities, and all associated direct labor, manufacturing overhead, direct materials and contracted services. Such costs are expensed as incurred. The Company also, from time to time, engages in customer-funded R&D activity. Any customer funds received in connection therewith would appear in revenues and the associated expenses are included in cost of revenues. Additionally, some of our programs include engineering and development efforts which are also incorporated in costs to complete the program and are recognized in revenues and costs of revenues.

Income Tax, Policy [Policy Text Block]

Income Taxes:

The Company recognizes deferred tax liabilities and assets based on the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax liabilities and assets are determined based on the difference between the financial statement and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Valuation allowances are established and adjusted when necessary to increase or reduce deferred tax assets to the amount expected to be realized.

The Company analyzes its tax positions under accounting standards which prescribe recognition thresholds that must be met before a tax benefit is recognized in the financial statements and provides guidance on de-recognition, classification, interest and penalties, accounting in interim periods, disclosure, and transition. Under these standards, the Company may only recognize or continue to recognize tax positions that meet a “more likely than not” threshold. Interest and penalties recognized on income taxes are recorded as income tax expense.

Earnings Per Share, Policy [Policy Text Block]

Earnings (Loss) per Share:

Basic earnings (loss) per share are computed by dividing net earnings (loss) by the weighted average number of shares of common stock outstanding. Diluted earnings (loss) per share are computed by dividing net earnings (loss) by the sum of the weighted average number of shares of common stock and the if-converted effect of unexercised stock options and stock appreciation rights (“SARs”). Diluted earnings (loss) per share excludes the if-converted effect of such items if their inclusion would be anti-dilutive.

Fair Value of Financial Instruments, Policy [Policy Text Block]

Fair Values of Financial Instruments:

Cash and cash equivalents, restricted cash, accounts receivable, accounts payable, short-term credit obligations, and cash surrender value of life insurance are reflected in the accompanying consolidated balance sheets at amounts considered by management to reasonably approximate fair value based upon the nature of the instrument and current market conditions. Management is not aware of any factors that would significantly affect the value of these amounts. The Company also has an investment in a privately-held Russian company, Morion, Inc. (“Morion”), see Note 9 for additional information.

The fair value accounting framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements).

The levels of the fair value hierarchy are described below:

Level 1

Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities.

Level 2

Inputs to the valuation methodology include: -Inputs other than quoted prices that are observable for the asset or liability; and -Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

Level 3

Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. The business account and U.S. securities are valued on a Level 1 basis. The fixed income corporate debt securities are valued on a Level 2 basis. Level 2 securities are valued at the closing prices and are consistent with quoted prices of similar assets reported in active markets. See Note 11 for additional information.

Share-Based Payment Arrangement [Policy Text Block]

Equity-based Compensation:

The cost of employee services received in exchange for awards of equity instruments are based on the grant-date fair value of the award. We recognize the fair value of the award as compensation expense over the period during which an employee is required to provide service in exchange for the award. For awards with performance conditions, we recognize the fair value of the award as compensation expense when it is probable that the performance condition will be achieved. The Company has elected an accounting policy to account for award forfeitures as they occur, with no adjustment for estimated forfeitures.

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Concentration of Credit Risk:

Financial instruments, which potentially subject the Company to concentration of credit risk, consist principally of cash and cash equivalents and trade receivables. The Company maintains cash accounts at several commercial banks at which the balances exceed FDIC limits. The Company has not experienced any losses on such amounts. Concentration of credit risk with respect to trade receivables is generally diversified due to the large number of entities comprising the Company’s customer base and their dispersion across geographic areas, principally within the U.S. The Company routinely addresses the financial strength of its customers and, as a consequence, believes that its receivable credit risk exposure is limited. The Company does not require customers to post collateral.

Restructuring [Policy Text Block]

Restructuring:

During the fourth quarter of fiscal 2026, the Company approved a plan to exit its FEI-Elcom business. Effective as of April 30, 2026, FEI-Elcom, a wholly-owned subsidiary of the Company, was converted into a Delaware limited liability company and the ongoing business operations, including the net book value of the assets and liabilities at April 30, 2026, of FEI-Elcom have been transferred to the FEI-NY segment. As FEI-Elcom was already reported within the FEI-NY segment, the restructuring did not result in a change in the financial presentation of any segment information. The remaining workforce will continue as employees of FEI-NY while remaining in the New Jersey office location. As a result of the restructuring, the Company recognized approximately $3.8 million of inventory write offs included in cost of revenues, approximately $0.4 million of SG&A expense related to severance and legal costs, and approximately $0.4 million of other expense for derecognition of goodwill in the consolidated statement of operations. All charges noted related to restructuring have been recorded in the FEI-NY segment. The Company believes that the charges associated with this restructuring are substantially complete as of April 30, 2026

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements:

In December 2023, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” (“ASU 2023-09”). ASU 2023-09 is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to the rate reconciliation and income taxes paid information. Early adoption is permitted. A public entity can apply the amendments in ASU 2023-09 prospectively or retrospectively to all annual periods beginning after December 15, 2024. The guidance was adopted by the Company prospectively for the year ended April 30, 2026, and the Company, accordingly, made the required changes in its income tax related disclosure. See Note 12 for additional information. The adoption of ASU 2023-09 did not have any material impact on the Company’s audited consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This ASU requires entities to disclose certain expenses, including purchases of inventory, employee compensation, depreciation, and intangible asset amortization, by caption. Additionally, entities must provide a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. The amendments are effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact this standard will have on the consolidated financial statements.

In December 2025, the FASB issued ASU No. 2025-11, Interim Reporting (Topic 270): Narrow Scope Improvements, an amendment of the FASB Accounting Standards Codification. The amendments in this ASU primarily provide clarification on interim reporting requirements and enhanced disclosure requirements. The amendments also include a disclosure principle to disclose all events since the end of the last annual reporting period that have a material impact on the Company. The ASU is effective for fiscal years beginning after December 15, 2027, and all interim reporting periods within applicable annual periods, with early adoption permitted. The Company is currently evaluating the effect that this standard will have on its consolidated financial statements and related disclosures.

Reclassification, Comparability Adjustment [Policy Text Block]

Reclassifications:

Certain amounts in prior years have been reclassified to conform to the current year presentation.

Property, Plant and Equipment, Net (Tables)

12 Months Ended

Apr. 30, 2026

Property, Plant, and Equipment [Abstract]

Property, Plant, and Equipment [Table Text Block]

Property, plant and equipment, net, at April 30, 2026 and 2025, consisted of the following (in thousands):

	April 30, 2026			April 30, 2025

Buildings and building improvements	$	3,325		$	2,923
Machinery, equipment and furniture		36,915			63,347
		40,240			66,270
Less accumulated depreciation		(33,135	)		(60,082	)
	$	7,105		$	6,188

Contract Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2024
Contract Assets [Member]
Contract Assets and Liabilities (Details) [Line Items]
Increase (Decrease) in Commodity Contract Assets and Liabilities	$ 0.6
Contract Liabilities [Member]
Contract Assets and Liabilities (Details) [Line Items]
Increase (Decrease) in Commodity Contract Assets and Liabilities	$ 4.2	$ 9.3	$ 18.3

Income Taxes (Tables)

12 Months Ended

Apr. 30, 2026

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

For financial reporting purposes, (Loss) income before benefit for income taxes, includes the following components (in thousands):

	Fiscal Year Ended April 30,
	2026			2025
Domestic operations	$	(2,908	)	$	12,144
(Loss) income before income taxes	$	(2,908	)	$	12,144

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The benefit from income taxes consisted of the following (in thousands):

	Fiscal Year Ended April 30,
	2026			2025
Current:
Federal	$	18		$	137
State		16			374
Current provision		34			511
Deferred:
Federal		(1,501	)		(9,634	)
State		(538	)		(2,419	)
Deferred tax benefit		(2,039	)		(12,053	)

Total benefit	$	(2,005	)	$	(11,542	)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The difference between the federal statutory rate of 21% and the Company’s effective tax rate after the adoption of ASU 2023-09 is summarized as follows (in thousands):

	Fiscal Year Ended April 30, 2026
	Amount			%
Income tax at statutory federal tax rate	$	(611	)		21.0	%
State and local income tax, net of federal income tax effect		(417	)		14.4	%
Changes in valuation allowances		(19	)		0.6	%
Nontaxable or nondeductible items:
Stock Based Compensation		(1,205	)		41.5	%
Non-deductible officer’s compensation		246			(8.5	)%
Goodwill Write-off		84			(2.9	)%
Other nontaxable or nondeductible items		(1	)		0.1	%
Research and Development Tax credits		(176	)		6.0	%
Changes in unrecognized tax benefits		5			(0.2	)%
Other		89			(3.0	)%
Total benefit	$	(2,005	)		69.0	%

The difference between the federal statutory rate of 21% and the Company’s effective tax rate before the adoption of ASU 2023-09 is summarized as follows:

	Fiscal Year Ended
	April 30, 2025
Statutory rate	$	2,550
State and local tax		223
Valuation allowance on deferred tax assets		(13,874	)
Nondeductible expenses		5
FDII		(81	)
Nontaxable life insurance cash value increase		(65	)
Stock compensation		(153	)
Tax credits		(319	)
Change in tax rate		173
Other items		(1	)
Total benefit	$	(11,542	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The components of deferred taxes are as follows (in thousands):

	Fiscal Year Ended April 30,
	2026			2025
Deferred tax assets:
Employee benefits	$	2,901		$	2,810
Inventory		4,081			2,876
Accounts receivable		95			144
Tax credits		2,111			1,945
Property, plant and equipment		87			-
Deferred costs		1,355			1,511
Lease liability		1,898			2,128
Capital loss carry-forward		176			194
Research & development		1,693			2,247
Net operating loss carryforwards		3,649			2,276
Other assets		305			301
Total deferred tax asset		18,351			16,432
Deferred tax liabilities:
Property, plant and equipment		-			(74	)
Right of use asset		(1,838	)		(2,104	)
Other liabilities		(177	)		(77	)
Deferred state income tax		(897	)		(779	)
Net deferred tax asset		15,439			13,398
Valuation allowance		(1,355	)		(1,353	)
Net deferred tax asset	$	14,084		$	12,045

Summary of Valuation Allowance [Table Text Block]

As required under ASU 2023-09, the Company has included only the portion of the valuation allowance related to federal deferred tax assets in the “Change in valuation allowances” line of the rate reconciliation. The following table presents a reconciliation of the total change in the valuation allowance.

	Fiscal Year Ended
	April 30, 2026
Balance at the beginning of the fiscal year	$	1,353
Changed charged to income tax expense		2
Balance at the end of the fiscal year	$	1,355

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

A reconciliation of the beginning and ending amounts of unrecognized tax benefits, is as follows (in thousands):

	2026		2025
Balance at the beginning of the fiscal year	$	144	$	111
Additions based on positions taken in the current year		41		-
Additions based on positions taken in prior years		11		45
Decreases based on positions taken in prior years		-		(12	)
Lapse in statute of limitations		-		-
Balance at the end of the fiscal year	$	196	$	144

Schedule of Cash Income Taxes Paid [Table Text Block]

Cash taxes paid were as follows (in thousands):

	Fiscal Year Ended
	April 30, 2026
Federal	$	100
State and local		251
Total	$	351

	Fiscal Year Ended
	April 30, 2026
Federal	$	100
State and local
California		223
Texas		20
Other		8
Total	$	351

Summary of Accounting Policies - Revenue from External Customers by Products and Services (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Revenue	$ 63,227	$ 69,811
Satellite Revenue [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Revenue	23,128	40,897
Government Non-Space Revenue [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Revenue	38,011	26,549
Other Commercial & Industrial Revenue [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Revenue	$ 2,088	$ 2,365

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B

Reference 31: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A

Reference 32: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B

Reference 33: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

+ Details

Product Warranties (Tables)

12 Months Ended

Apr. 30, 2026

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

As of April 30, 2026 and 2025, respectively, changes in the carrying amount of accrued product warranty costs, reported in accrued expenses on the consolidated balance sheets, were as follows (in thousands):

	2026			2025
Balance at beginning of year	$	567		$	542
Warranty costs incurred		(438	)		(253	)
Product warranty accrual		388			278
Balance at end of year	$	517		$	567

Segment Information (Tables)

12 Months Ended

Apr. 30, 2026

Segment Reporting [Abstract]

Segment Reporting, Reconciliation of Revenue by Segment to Consolidated [Table Text Block]

The tables below present segment revenue, significant segment expenses which consist of segment cost of revenue and segment research and development costs, and segment operating (loss) income for each reportable segment and on a consolidated basis as reported in the consolidated statements of operations for the fiscal years ended April 30, 2026 and 2025 (in thousands):

	For the Fiscal Years Ended April 30,
	2026			2025
Revenues:
FEI-NY	$	45,651		$	53,269
FEI-Zyfer		21,731			18,660
Less intersegment revenues		(4,155	)		(2,118	)
Consolidated revenues	$	63,227		$	69,811

Cost of revenues:
FEI-NY	$	35,816		$	29,331
FEI-Zyfer		12,497			12,598
Less intersegment cost of revenues		(3,482	)		(2,215	)
Consolidated cost of revenues	$	44,831		$	39,714

Research and development expenses:
FEI-NY	$	3,800		$	3,374
FEI-Zyfer		2,194			2,702
Consolidated research and development expenses	$	5,994		$	6,076

Operating (loss) income:
FEI-NY	$	(5,442	)	$	11,514
FEI-Zyfer		3,813			743
Less intersegment		(673	)		98
Corporate		(699	)		(623	)
Consolidated operating (loss) income	$	(3,001	)	$	11,732

Segment Reporting, Reconciliation of Asset by Segment to Consolidated [Table Text Block]

The tables below present the identifiable assets of each reportable segment and on a consolidated basis as reported in the consolidated balance sheets as of April 30, 2026 and 2025 and the depreciation and amortization charges related to these identifiable assets for the fiscal years then ended (in thousands):

	April 30, 2026			April 30, 2025

Identifiable assets:
FEI-NY	$	40,849		$	39,125
FEI-Zyfer		23,759			23,865
less intersegment balances		(814	)		(140	)
Corporate		26,912			30,887
Consolidated identifiable assets	$	90,706		$	93,737

Segment Reporting, Reconciliation of Other Item by Segment to Consolidated [Table Text Block]

	For the Fiscal Years Ended April 30,
	2026		2025

Depreciation and amortization:
FEI-NY	$	1,799	$	1,932
FEI-Zyfer		94		123
Corporate		-		-
Consolidated depreciation and amortization expense	$	1,893	$	2,055

Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue [Table Text Block]

Revenues in each of the Company’s segments include sales to foreign governments or to companies located in foreign countries. For the fiscal years ended April 30, 2026 and 2025, revenues, based on the location of the procurement entity, were derived from the following locations (in thousands):

	For the Fiscal Years Ended April 30,
	2026		2025
Domestic	$	57,745	$	65,362
Foreign		5,482		4,449
	$	63,227	$	69,811

Inventories

12 Months Ended

Apr. 30, 2026

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

4. Inventories

Inventories at April 30, 2026 and 2025, consisted of the following (in thousands):

	April 30, 2026		April 30, 2025
Raw materials and component parts	$	13,026	$	14,668
Work in progress		9,205		8,444
Finished goods		387		375
	$	22,618	$	23,487

Inventory reserves included in inventory were $10.0 million and $10.3 million for the fiscal years ended April 30, 2026 and 2025, respectively.

Accrued Liabilities (Tables)

12 Months Ended

Apr. 30, 2026

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

Accrued liabilities at April 30, 2026 and 2025, respectively, consisted of the following (in thousands):

	2026		2025
Vacation and other compensation	$	1,822	$	1,575
Incentive compensation		191		1,347
Payroll taxes		665		712
Warranty reserve		517		567
Commissions		19		24
Deferred compensation payable		634		634
Other		2,634		1,040
	$	6,482	$	5,899

Earnings Per Share (Details) - shares	12 Months Ended
Earnings Per Share (Details) - shares	Apr. 30, 2026	Apr. 30, 2025
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0

Inventories - Schedule of Inventory, Current (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Schedule Of Inventory Current Abstract
Raw materials and component parts	$ 13,026	$ 14,668
Work in progress	9,205	8,444
Finished goods	387	375
Total	$ 22,618	$ 23,487

Inventories (Tables)

12 Months Ended

Apr. 30, 2026

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories at April 30, 2026 and 2025, consisted of the following (in thousands):

	April 30, 2026		April 30, 2025
Raw materials and component parts	$	13,026	$	14,668
Work in progress		9,205		8,444
Finished goods		387		375
	$	22,618	$	23,487

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Schedule Of Effective Income Tax Rate Reconciliation Abstract
Income tax at statutory federal tax rate, Amount	$ (611)	$ 2,550
Income tax at statutory federal tax rate, Percentage	21.00%
State and local income tax, net of federal income tax effect, Amount	$ (417)	223
State and local income tax, net of federal income tax effect, Percentage	14.40%
Changes in valuation allowances, Amount	$ (19)	(13,874)
Changes in valuation allowances, Percentage	0.60%
Nondeductible expenses		5
FDII		(81)
Nontaxable life insurance cash value increase		(65)
Tax credits		(319)
Change in tax rate		173
Other items		(1)
Nontaxable or nondeductible items:
Stock Based Compensation, Amount	$ (1,205)	(153)
Stock Based Compensation, Percentage	41.50%
Non-deductible officer’s compensation, Amount	$ 246
Non-deductible officer’s compensation, Percentage	(8.50%)
Goodwill Write-off, Amount	$ 84
Goodwill Write-off, Percentage	(2.90%)
Other nontaxable or nondeductible items, Amount	$ (1)
Other nontaxable or nondeductible items, Percentage	0.10%
Research and Development Tax credits, Amount	$ (176)
Research and Development Tax credits, Percentage	6.00%
Changes in unrecognized tax benefits, Amount	$ 5
Changes in unrecognized tax benefits, Percentage	(0.20%)
Other, Amount	$ 89
Other, Percentage	(3.00%)
Total benefit, Amount	$ (2,005)	$ (11,542)
Total benefit, Percentage	69.00%

Income Taxes - Schedule of Cash Income Taxes Paid (Net of Refunds) (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2026 USD ($)
Income Taxes - Schedule of Cash Income Taxes Paid (Net of Refunds) (Details) [Line Items]
Federal	$ 100
State and local	251
Total	351
Federal	100
Total state and local	351
CALIFORNIA
Income Taxes - Schedule of Cash Income Taxes Paid (Net of Refunds) (Details) [Line Items]
Total state and local	223
TEXAS
Income Taxes - Schedule of Cash Income Taxes Paid (Net of Refunds) (Details) [Line Items]
Total state and local	20
Income Tax Jurisdiction, Domestic State and Local, Other [Member]
Income Taxes - Schedule of Cash Income Taxes Paid (Net of Refunds) (Details) [Line Items]
Total state and local	$ 8

Cybersecurity Risk Management and Strategy Disclosure

12 Months Ended

Apr. 30, 2026

Cybersecurity Risk Management, Strategy, and Governance [Line Items]

Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]

We believe cybersecurity is critical to our mission to ensure uninterrupted business continuity and enables us to deliver superior services while safeguarding our customers’ sensitive information.

Our cybersecurity risk management processes are integrated into our overall risk management strategy. As part of our risk management strategy, our cybersecurity framework encompasses the following key processes:

●

Risk-Based Controls for Information Systems: We maintain an Information Technology (IT) infrastructure with physical, administrative, and technical controls tailored to protect the confidentiality, integrity, and availability of our information and systems.

●

Cybersecurity Incident Response Plan and Testing: We have an incident response plan supported by a dedicated team to address cybersecurity incidents. This incident response plan includes vulnerability identification, initial assessment, and engagement of external experts as needed.

●

Training Initiatives: We provide security awareness training to help our employees understand their information protection and cybersecurity responsibilities at the Company. We also provide additional role-based training to employees based on customer requirements, regulatory obligations and industry risks, as needed.

●

Third-Party Assessments: We engage cybersecurity firms to regularly evaluate our cybersecurity posture, helping identify and mitigate risks posed by evolving threats.

We seek to continually strengthen our cybersecurity defenses through significant investments in resources and maintaining comprehensive cybersecurity insurance coverage. We maintain an insider threat detection program to proactively identify and mitigate both external and internal threats in a timely manner.

We rely on certain third-party service providers to assist us with the delivery of our products to our customers. A cybersecurity incident at a supplier or subcontractor could materially adversely impact us. Therefore, we evaluate third party providers from a cybersecurity risk perspective, which may include an assessment of that service provider’s cybersecurity posture through a questionnaire. However, we rely on the third parties we use to implement security programs commensurate with their risk, and we cannot ensure in all circumstances that their efforts will be successful.

Our adherence to Defense Federal Acquisition Regulation Supplement (DFARS) and Cybersecurity Maturity Model Certification (CMMC) requirements seeks to ensure strict protection of Controlled Unclassified Information (CUI), as mandated by the U.S. Department of War. These efforts underscore our commitment to maintaining the highest cybersecurity resilience standards and regulatory compliance.

As a U.S. Government defense industry contractor, we have experienced cybersecurity attacks and may be subject to significant cybersecurity attacks in the future. To date, we are not aware of any cybersecurity threats that have materially affected or are reasonably likely to affect us, including our business strategy, results of operations or financial condition. For additional information, see “Our business could be adversely impacted by significant cybersecurity attacks” in Item 1A. Risk Factors above.

Cybersecurity Risk Management Processes Integrated [Text Block]

●

Third-Party Assessments: We engage cybersecurity firms to regularly evaluate our cybersecurity posture, helping identify and mitigate risks posed by evolving threats.

Cybersecurity Risk Role of Management [Text Block]

●

Third-Party Assessments: We engage cybersecurity firms to regularly evaluate our cybersecurity posture, helping identify and mitigate risks posed by evolving threats.

Cybersecurity Risk Management Processes Integrated [Flag]

true

Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]

true

Cybersecurity Risk Management Third Party Engaged [Flag]

true

Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]

false

Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]

Cybersecurity Risk Board of Directors Oversight [Text Block]

Cybersecurity Risk Management Positions or Committees Responsible [Text Block]

The full Board of Directors has overall responsibility for overseeing the cybersecurity processes of identifying and mitigating cybersecurity risks. The Board of Directors has not delegated this responsibility to any one Committee, as its structure and size allows for the entire Board of Directors to oversee this responsibility. Periodically, our management provides updates to the Board of Directors regarding our internal control program, including any significant changes to its IT infrastructure and/or cybersecurity program. Management also communicates directly with the Board of Directors to report any material risks from cybersecurity threats.

Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]

Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]

Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]

true

Cybersecurity Risk Management Expertise of Management Responsible [Text Block]

Our Chief Information Officer (CIO) leads our cybersecurity program and reports directly to our Chief Executive Officer. Our CIO is supported by our internal IT team that assists our CIO in the day-to-day management of the cybersecurity program, including the cybersecurity incident response plan, training initiatives and third-party assessments. Our CIO has over two decades of experience in various cybersecurity functions, including implementing stringent cybersecurity measures to protect sensitive information and meet established security standards, extensive work in IT governance and operations, network intrusion and critical systems protection, Enterprise Resource Planning (ERP) systems, and data analytics.

Cybersecurity Risk Management Positions or Committees Responsible [Flag]

true

Summary of Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Disaggregation of Revenue [Line Items]
Revenue	$ 63,227	$ 69,811
NEW YORK
Disaggregation of Revenue [Line Items]
Revenue	45,651	53,269
CALIFORNIA
Disaggregation of Revenue [Line Items]
Revenue	21,731	18,660
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	(4,155)	(2,118)
POC Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	57,684	65,791
POC Revenue [Member] \| NEW YORK
Disaggregation of Revenue [Line Items]
Revenue	40,263	49,585
POC Revenue [Member] \| CALIFORNIA
Disaggregation of Revenue [Line Items]
Revenue	17,421	16,206
POC Revenue [Member] \| UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	0	0
POT Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,543	4,020
POT Revenue [Member] \| NEW YORK
Disaggregation of Revenue [Line Items]
Revenue	5,388	3,684
POT Revenue [Member] \| CALIFORNIA
Disaggregation of Revenue [Line Items]
Revenue	4,310	2,454
POT Revenue [Member] \| UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	$ (4,155)	$ (2,118)

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-5

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
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-Paragraph 91
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
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-Paragraph 91
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
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-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (d)
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-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 8: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
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-Name Accounting Standards Codification
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-Paragraph 91
-Subparagraph (f)
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-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Income Taxes - Schedule of Reconciliation Total Change in Valuation Allowance (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2026 USD ($)
Schedule Of Reconciliation Total Change In Valuation Allowance Abstract
Balance at the beginning of the fiscal year	$ 1,353
Changed charged to income tax expense	2
Balance at the end of the fiscal year	$ 1,355

Right-of-Use Assets and Lease Liabilities - Lease, Cost (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Assets
Operating lease ROU assets	$ 7,409	$ 8,659
Liabilities
Operating lease liabilities (short-term)	2,002	2,027
Operating lease liabilities (long-term)	5,648	6,729
Total lease liabilities	$ 7,650	$ 8,756

Employee Benefit Plans

12 Months Ended

Apr. 30, 2026

Disclosure Text Block Supplement [Abstract]

Compensation and Employee Benefit Plans [Text Block]

11. Employee Benefit Plans

Profit Sharing Plan:

The Company provides its U.S.-based employees with a profit-sharing plan and trust under § 401(k) of the Internal Revenue Code. This plan allows all eligible employees to defer a portion of their income through voluntary contributions to the plan. In accordance with the provisions of the plan, the Company can make discretionary matching contributions in the form of cash or common stock. For the fiscal years ended April 30, 2026 and 2025, the Company contributed 36,067 and 70,100 shares of common stock, respectively. The approximate value of these shares at the date of contribution was $1.3 million and $0.9 million in fiscal years 2026 and 2025, respectively. Contributed shares are drawn from the Company’s common stock and during fiscal years 2026 and 2025, such transactions increased additional paid in capital by $1.3 million and $0.8 million, respectively. As of April 30, 2026, the plan held a total of 440,546 shares, which were allocated to the accounts of the individual participants. As of April 30, 2025, the plan held a total of 504,734 shares, which were allocated to the accounts of the individual participants.

Income Incentive Pool:

The Company maintains incentive bonus programs for certain employees that are based on operating profits of the individual subsidiaries to which the employees are assigned. The Company also adopted a plan for the President and Chief Executive Officer of the Company for which the formula is based on consolidated pre-tax profits, bookings, and revenue. The incentive bonus recorded for the fiscal year ended April 30, 2026 and April 30, 2025 was $0.2 million and $1.8 million, respectively.

Employee Stock Plans:

On August 27, 2024, the Board of Directors, subject to stockholder approval, adopted the 2025 Stock Award Plan (“2025 Plan”), which replaced the 2005 Stock Award Plan. The 2025 Plan incorporates all previous grants under the previous plan, without changes to the original terms of the grants, and adds 700,000 shares for future grants. The 2025 Plan was approved by stockholder vote at the Company’s annual meeting of stockholders held on October 8, 2024. The 2025 Plan is for key management employees, including officers and directors who are employees, certain consultants and independent members of the Board of Directors. Under the 2025 Plan equity compensation, such as nonqualified stock options, incentive stock options, stock appreciation rights (“SAR”), performance stock units (“PSU”) and restricted stock units (“RSU”), are granted at the discretion of the Compensation Committee of the Board of Directors at an exercise price not less than the fair market value of the Company’s common stock on the date of grant.

Typically, options and SARs vest over a four-year period from the date of grant. The options and SARs generally expire five or ten years after the date of grant (the most recent SARs awards, beginning in fiscal year 2017, expire in five years), at the Compensation Committee’s discretion, and are subject to certain restrictions on transferability of the shares obtained on exercise. Under the 2025 Plan, instruments granted which expire, are canceled, or are tendered in the exercise of such instruments, increase the shares available for future grants under the 2025 Plan.

As of April 30, 2025, eligible employees and directors had been granted total SARs representing approximately 2,385,000 shares of the Company’s common stock, of which no shares were outstanding and no shares were exercisable. There were no SARs granted during the fiscal year 2025. When the SARs become exercisable, the Company will settle the SARs by issuing to exercising recipients the number of shares of stock from common stock or treasury stock, if available, equal to the appreciated value of the Company’s stock between the grant date and exercise date. At the time of exercise, the quantity of shares under the SARs grant equal to the exercise value divided by the then market value of the shares will be returned to the pool of available shares for future grant under the 2025 Plan. During the fiscal year ended April 30, 2025, employees exercised 20,000 SARs and were granted 4,556 shares of the Company’s common stock. There were 15,444 shares returned to the pool of available shares. Forfeitures are recorded as they occur. There were no options or SARs granted, exercised, canceled or expired during the fiscal year ended April 30, 2026.

The following table summarizes information about stock option and SARs activity for the fiscal years ended April 30, 2026 and 2025:

	Stock Options and Stock Appreciation Rights
				Weighted- Average					Weighted Average Remaining	Aggregate
				Exercise		Grant Date			Contractual	Intrinsic
	Shares			Price		Fair Value			Term	Value
Outstanding – April 30, 2024		86,000		$	13.01	$	1,118,640		0.9 years	$	-
Granted		-			-		-
Exercised		(20,000	)		12.24		(244,800	)			(127,200	)
Expired or canceled		(66,000	)		13.24		(873,840	)
Outstanding – April 30, 2025		-		$	-	$	-			$	-
Available for future grants		1,269,186

As of April 30, 2026 and 2025, respectively, there were no unrecognized compensation cost related to non-vested options and SARs under the plans.

During the fiscal year ended April 30, 2026 and 2025, there were no shares that vested.

There were no stock-based compensation costs, for options and SARs, included in the cost of revenues of programs on which the Company recognizes revenue under the POC method for the fiscal years ended April 30, 2026 and 2025. There was no stock-based compensation expense included in selling and administrative expenses related to options and SARs during the fiscal years ended April 30, 2026 and 2025, respectively.

The Company classifies cash flows resulting from the tax benefits from tax deductions recognized upon the exercise of stock options or SARs (tax benefits) as operating cash flows. The Company did not recognize any tax benefits from the exercise of stock options and SARs for the fiscal years presented.

Restricted Stock Plan and Other Issuances:

The Company began issuing RSUs to eligible employees in fiscal year 2020. The fair value of these awards is equivalent to the market value of the Company’s common stock on the grant date and vests over a period of time. RSUs are not shares of the Company’s common stock and do not have any rights or privileges thereof, including voting or dividend rights. On the applicable vesting date, the holder of an RSU becomes entitled to share of the Company’s common stock. A portion of the RSUs awarded will vest annually until fiscal year 2029, the remaining represent awards that cliff vest in fiscal year 2029.

During the fiscal year ended April 30, 2026, there were no shares of common stock issued to employees for milestone years of service to the Company. During the fiscal year ended April 30, 2025, the Company issued 1,550 shares of common stock to select employees for milestone years of service to the Company. These shares were issued under the 2025 Stock Award Plan, are shares of the Company’s common stock, and are fully vested at time of issuance.

In fiscal year 2021 the Company elected to issue PSUs. The fair value of these awards is equivalent to the market value of the Company’s common stock on the grant date and requires an assessment of the probability that the specified performance conditions will be achieved, which is updated at each reporting date. PSUs are not shares of the Company’s common stock and do not have any rights or privileges thereof, including voting or dividend rights. On the applicable vesting date, subject to the attainment of the specified performance conditions, the holder of a PSU becomes entitled to a share of the Company’s common stock. PSUs are subject to certain restrictions and forfeiture provisions, in addition to the specified performance conditions. The PSUs awarded will vest, subject to achieving these performance conditions, annually until fiscal year 2029.

Stock-based compensation costs, related to RSUs and PSUs, included in the cost of revenues of programs on which the Company recognizes revenue under the POC method were approximately $699,000 and $357,000 for the fiscal years ended April 30, 2026 and 2025, respectively. Stock-based compensation expense, for RSUs and PSUs, included in selling and administrative expenses was approximately $1.2 million and $776,000 for the fiscal years ended April 30, 2026 and 2025, respectively. Unrecognized stock compensation was $7.7 million and $4.2 million for the fiscal years ended April 30, 2026 and 2025, respectively. The grant date fair value of vested RSUs and PSUs was approximately $1.5 million and $918,000 for the fiscal years ended April 30, 2026 and 2025, respectively.

The following table summarizes activity for the RSUs and PSUs awards that reduce available capacity under the 2025 Plan for the fiscal years ended April 30, 2026 and 2025:

				Weighted- Average
	Shares			Grant Date Fair Value
Balance – April 30, 2024		474,569		$	6.94
Granted		187,250			13.13
Vested		(131,970	)		6.95
Forfeited		-			-
Balance – April 30, 2025		529,849		$	9.12
Granted		112,048			52.65
Vested		(171,629	)		8.84
Forfeited		(34,120	)		14.28
Balance – April 30, 2026		436,148		$	20.01

As of April 30, 2026, performance conditions related to the majority of outstanding PSUs are anticipated to be achieved. The PSUs will continue to vest, the same as RSUs, annually over a four year period.

Deferred Compensation Agreements:

The Company has a series of agreements with key employees providing for the payment of benefits upon retirement or death. Annual amounts relating to these plans are recorded based on actuarial projections, which include various actuarial assumptions, including discount rates, mortality rates, assumed rates of return, and turnover rates. The actuarial assumptions used to determine deferred compensation liabilities and expense are reviewed annually and modified based on current economic conditions and trends. The discount rate used to measure obligations is based on the Company’s bond rate yield curve.

Under these agreements, each key employee receives specified retirement payments for the remainder of the employee’s life with a minimum payment of ten years’ benefits to either the employee or his or her beneficiaries. The agreements also provide for lump sum payments upon termination of employment without cause and reduced benefits upon early retirement. The Company pays the benefits out of its working capital but has also purchased whole life or term life insurance policies on the lives of certain of the participants to cover the optional lump sum obligations of the agreements upon the death of the participant. Deferred compensation expense charged to selling and administrative expenses during the fiscal year ended April 30, 2026 was approximately $374,000. Deferred compensation expense charged to selling and administrative expenses during the fiscal year ended April 30, 2025 was approximately $504,000.

Life Insurance Policies and Assets Held in Trust:

The whole-life insurance policies on the lives of certain participants covered by deferred compensation agreements have been placed in a trust. Upon the death of any insured participant, cash received from life insurance policies in excess of the Company’s deferred compensation obligations to the estate or beneficiaries of the deceased, are also placed in the trust. These assets belong to the Company until a change of control event, as defined in the trust agreement, should occur. At that time, the Company is required to add sufficient cash to the trust so as to match the deferred compensation liability described above. Such funds will be used to continue the deferred compensation arrangements following a change of control. The Life Insurance Policies amounted to $7.3 million and $7.0 million at April 30, 2026 and 2025, respectively. The business account and U.S. securities within the trust are valued on a Level 1 basis and amounted to $4.0 million and $3.5 million at April 30, 2026 and 2025, respectively. The fixed income corporate debt securities within the trust are valued on a Level 2 basis and amounted to $0.4 million at April 30, 2026 and 2025. Level 2 securities are valued at the closing prices and are consistent with quoted prices of similar assets reported in active markets.

Contract Assets and Liabilities - Schedule of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2024
Schedule Of Contract Assets And Liabilities Abstract
Contract Assets	$ 17,277	$ 17,914	$ 10,523
Contract Liabilities	(9,418)	(13,607)	(21,639)
Accounts receivable, net	$ 4,740	$ 5,914	$ 4,614

Income Taxes (Details) $ in Millions	12 Months Ended
Income Taxes (Details) $ in Millions	Apr. 30, 2026 USD ($)
Income Taxes (Details) [Line Items]
Percentage Of Permanent Provision For Maximum Bonus Depreciation Deductions For Tangible Assets	100.00%
Recovery Period	20 years
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	$ 1.4
Research Tax Credit Carryforward [Member]
Income Taxes (Details) [Line Items]
Tax Credit Carryforward, Amount	0.8
Income Tax Jurisdiction, Domestic Federal [Member]
Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	10.9
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	1.7
Deferred Tax Assets Net Operating Loss	10.9
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	9.2
Tax Credit Carryforward, Amount	$ 0.7

Investment in Morion, Inc. (Details) - USD ($)	12 Months Ended
Investment in Morion, Inc. (Details) - USD ($)	Apr. 30, 2026	Apr. 30, 2025
Schedule of Investments [Abstract]
Cost Method Investment Ownership Percentage	4.60%
Investments	$ 0	$ 0
Dividends Received	$ 0	$ 0

Employee Benefit Plans - Schedule of Share-based Compensation, Stock Options, Activity (Details) - USD ($)	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2024
Schedule Of Share Based Compensation Stock Options Activity Abstract
Options, Shares Outstanding (in Shares)			86,000
Options, Weighted-Average Exercise Price			$ 13.01
Options, Grant Date Fair Value			$ 1,118,640
Options, Weighted Average Remaining Contractual Term			10 months 24 days
Options, Aggregate Intrinsic Value (in Dollars)	$ 0		$ 0
Available for future grants (in Shares)	1,269,186
Options, Shares Granted (in Shares)		0
Options, Weighted-Average Exercise Price Granted		$ 0
Options, Grant Date Fair Value Granted		$ 0
Options, Shares Exercised (in Shares)		(20,000)
Options, Weighted-Average Exercise Price Exercised		$ 12.24
Options, Grant Date Fair Value Exercised		$ (244,800)
Options, Aggregate Intrinsic Value Exercised (in Dollars)		$ (127,200)
Options, Shares Expired or Canceled (in Shares)		(66,000)
Options, Weighted-Average Exercise Price Expired or Canceled		$ 13.24
Options, Grant Date Fair Value Expired or Canceled		$ (873,840)
Options, Aggregate Intrinsic Value (in Dollars)		$ 0

Debt Obligations (Details) - USD ($)	Jun. 12, 2026	Apr. 30, 2026	Apr. 30, 2025
Debt Obligations (Details) [Line Items]
Line of Credit Facility, Current Borrowing Capacity (in Dollars)		$ 0	$ 0
Credit Agreement [Member] \| Subsequent Event [Member]
Debt Obligations (Details) [Line Items]
Annual Leverage Ratio	2.25%
Fixed Charge Coverage Ratio	1.25%
Credit Agreement [Member] \| JPMorgan Chase Bank [Member] \| Subsequent Event [Member]
Debt Obligations (Details) [Line Items]
Debt Instrument, Term	3 years
Long-Term Debt, Gross (in Dollars)	$ 10,000,000
Line of Credit Facility, Commitment Fee Percentage	0.35%
Debt Instrument, Basis Spread on Variable Rate	2.50%
Credit Agreement [Member] \| JPMorgan Chase Bank [Member] \| Subsequent Event [Member] \| CBFR Borrowings [Member]
Debt Obligations (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Credit Agreement [Member] \| JPMorgan Chase Bank [Member] \| Subsequent Event [Member] \| SOFR Borrowings [Member]
Debt Obligations (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Revolving Credit Facility [Member] \| JPMorgan Chase Bank [Member] \| Subsequent Event [Member]
Debt Obligations (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	$ 10,000,000
Letter of Credit [Member] \| JPMorgan Chase Bank [Member] \| Subsequent Event [Member]
Debt Obligations (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	$ 5,000,000

Restricted Cash

12 Months Ended

Apr. 30, 2026

Disclosure Text Block Supplement [Abstract]

Restricted Assets Disclosure [Text Block]

10. Restricted Cash

As of April 30, 2026 and 2025, restricted cash consisted of approximately $1.3 million and $1.4 million, respectively, related to a letter of credit required for contractual restrictions during the period of performance for one of the Company’s contracts. Restricted cash is classified as current or non-current based on the remaining performance period of the contract.

A reconciliation of cash and cash equivalents and restricted cash from the consolidated balance sheets to the consolidated statements of cash flows is shown below (in thousands):

	April 30, 2026		April 30, 2025
Cash and cash equivalents	$	1,603	$	4,720
Restricted cash		1,331		1,365
Total cash and cash equivalents and restricted cash	$	2,934	$	6,085

Document And Entity Information - USD ($)	12 Months Ended
Document And Entity Information - USD ($)	Apr. 30, 2026	Jul. 15, 2026	Oct. 31, 2025
Document Information Line Items
Entity Central Index Key	0000039020
Document Type	10-K
Document Annual Report	true
Current Fiscal Year End Date	--04-30
Document Period End Date	Apr. 30, 2026
Document Fiscal Year Focus	2026
Document Transition Report	false
Entity File Number	1-8061
Entity Registrant Name	FREQUENCY ELECTRONICS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	11-1986657
Entity Address, Address Line One	55 CHARLES LINDBERGH BLVD.
Entity Address, City or Town	MITCHEL FIELD
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11553
City Area Code	516
Local Phone Number	794-4500
Title of 12(b) Security	Common Stock (par value $1.00 per share)
Trading Symbol	FEIM
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 240,400,000
Entity Common Stock, Shares Outstanding		9,870,077
Documents Incorporated by Reference [Text Block]	DOCUMENTS INCORPORATED BY REFERENCE: PART III incorporates information by reference from the definitive proxy statement to be filed with the Securities and Exchange Commission with respect to the Annual Meeting of Stockholders to be held on or about October 7, 2026.
Auditor Name	GRANT THORNTON LLP
Auditor Location	Melville, NY
Auditor Firm ID	248
Amendment Flag	false
Document Fiscal Period Focus	FY

Right-of-Use Assets and Lease Liabilities (Details) - USD ($)	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Disclosure Text Block [Abstract]
Operating Lease, Expense	$ 2,500,000	$ 1,900,000
Variable Lease Expenses	500,000	400,000
Operating Lease, Payments	2,300,000	1,900,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	438,000	$ 4,122,000
Future Operating Lease Payments	$ 0
Operating Lease, Weighted Average Remaining Lease Term	3 years 10 months 24 days	4 years 6 months
Operating Lease, Weighted Average Discount Rate, Percent	7.09%	6.85%

Segment Information

12 Months Ended

Apr. 30, 2026

Segment Reporting [Abstract]

Segment Reporting [Text Block]

13. Segment Information

The Company operates under two reportable segments based on the geographic locations of its subsidiaries:

(1)

FEI-NY – operates out of New York and its operations consist principally of precision time and frequency control products used in three principal markets - communication satellites (both commercial and U.S. Government-funded); terrestrial cellular telephone or other ground-based telecommunication stations; and other components and systems for the U.S. military.

The FEI-NY segment also includes the operations of the Company’s wholly-owned subsidiary, FEI-Elcom. FEI-Elcom, in addition to its own product line, provides design and technical support for the FEI-NY segment’s satellite business. Effective as of April 30, 2026, FEI-Elcom was converted into a Delaware limited liability company. The ongoing business operations of FEI-Elcom will remain within the FEI-NY reporting segment.

(2)

FEI-Zyfer – operates out of California and its products incorporate Global Positioning System (GPS) technologies into systems and subsystems for secure communications, both government and commercial, and other locator applications. This segment also provides sales and support for the Company’s wireline telecommunications family of products, including US5G, which are sold in the U.S. market.

The Company measures segment performance based on the operating income generated by the geographic location of its subsidiaries rather than on the specific types of customers or end-users. Consequently, the Company determined that the segments indicated above most appropriately reflect the way the Company’s management views the business.

The accounting policies of the two segments are the same as those described in Note 1. Our Chief Executive Officer (“CEO”) serves as our CODM who evaluates the segment performance and allocates resources to them based on operating income which is defined as income before investment income, interest expense, other expenses, and income taxes. Operating income by segment is used to monitor segment results compared to prior periods to determine areas of business process improvements, profitable market opportunities, forecasted results, and the annual plan. All acquired assets, including intangible assets, are included in the assets of both reporting segments.

	For the Fiscal Years Ended April 30,
	2026			2025
Revenues:
FEI-NY	$	45,651		$	53,269
FEI-Zyfer		21,731			18,660
Less intersegment revenues		(4,155	)		(2,118	)
Consolidated revenues	$	63,227		$	69,811

Cost of revenues:
FEI-NY	$	35,816		$	29,331
FEI-Zyfer		12,497			12,598
Less intersegment cost of revenues		(3,482	)		(2,215	)
Consolidated cost of revenues	$	44,831		$	39,714

Research and development expenses:
FEI-NY	$	3,800		$	3,374
FEI-Zyfer		2,194			2,702
Consolidated research and development expenses	$	5,994		$	6,076

Operating (loss) income:
FEI-NY	$	(5,442	)	$	11,514
FEI-Zyfer		3,813			743
Less intersegment		(673	)		98
Corporate		(699	)		(623	)
Consolidated operating (loss) income	$	(3,001	)	$	11,732

Other segment items included in the determination of operating (loss) income includes SG&A of $11.5 million and $9.1 million for the fiscal years ended April 30, 2026 and 2025, respectively, for the FEI-NY segment, and $3.2 million and $2.6 million for the fiscal years ended April 30, 2026 and 2025, respectively, for the FEI-Zyfer segment.

	April 30, 2026			April 30, 2025

Identifiable assets:
FEI-NY	$	40,849		$	39,125
FEI-Zyfer		23,759			23,865
less intersegment balances		(814	)		(140	)
Corporate		26,912			30,887
Consolidated identifiable assets	$	90,706		$	93,737

	For the Fiscal Years Ended April 30,
	2026		2025

Depreciation and amortization:
FEI-NY	$	1,799	$	1,932
FEI-Zyfer		94		123
Corporate		-		-
Consolidated depreciation and amortization expense	$	1,893	$	2,055

Major Customers

The Company’s products are sold to both commercial and governmental customers. For the fiscal years ended April 30, 2026 and 2025, approximately 91% and 94%, respectively, of the Company’s sales were made under contracts to the U.S. Government or subcontracts for U.S. Government end-use.

In the fiscal year ended April 30, 2026, revenues from four customers of the FEI-NY segment, which each accounted for more than 10% of that segment’s revenues, were $7.0 million, $5.5 million, $5.3 million, and $5.1 million. In the fiscal year ended April 30, 2025, revenues from one customer of the FEI-NY segment, which accounted for more than 10% of that segment’s revenues, was $26.9 million. In the FEI-Zyfer segment, revenues from one customer, which accounted for more than 10% of that segment’s revenues, was $8.1 million in the fiscal year ended April 30, 2026. In the FEI-Zyfer segment, revenues from two customers, which each accounted for more than 10% of that segment’s revenues, were $2.9 million and $3.4 million in the fiscal year ended April 30, 2025.

The loss by the Company of any one of these customers would have a material adverse effect on the Company’s business. The Company believes its relationship with these customers is mutually satisfactory. Sales to the major customers referenced above can include commercial and governmental end users.

Foreign Sales

	For the Fiscal Years Ended April 30,
	2026		2025
Domestic	$	57,745	$	65,362
Foreign		5,482		4,449
	$	63,227	$	69,811

During the fiscal year ended April 30, 2026, material foreign sales to one Asian country amounted to approximately $3.8 million. During the fiscal year ended April 30, 2025, material foreign sales to one Asian country amounted to approximately $3.5 million.

- Definition

The entire disclosure for segment reporting.

+ References

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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Right-of-Use Assets and Lease Liabilities - Lessee, Operating Lease, Liability, Maturity (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Lessee Operating Lease Liability Maturity Abstract
2027	$ 2,064
2028	2,388
2029	2,535
2030	1,658
2031	45
Thereafter	0
Total lease payments	8,690
Less imputed interest	(1,040)
Present value of future lease payments	7,650	$ 8,756
Less current obligations under leases	(2,002)	(2,027)
Long-term lease obligations	$ 5,648	$ 6,729

Insider Trading Arrangements	12 Months Ended
Insider Trading Arrangements	Apr. 30, 2026
Trading Arrangements, by Individual [Table]
Rule 10b5-1 Arrangement Adopted [Flag]	false
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false

Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - shares

12 Months Ended

Apr. 30, 2026

Apr. 30, 2025

Weighted average shares outstanding:

Basic EPS Shares outstanding (weighted average)

9,783,358

9,611,914

Effect of Dilutive Securities

^[1]

2,622

Diluted EPS Shares outstanding

9,783,358

9,614,536

[1]	For the fiscal year ended April 30, 2026, there were no shares to exclude from the calculation of dilutive securities. There were no shares excluded for the fiscal year ended April 30, 2025.

Inventories (Details) - USD ($) $ in Millions	Apr. 30, 2026	Apr. 30, 2025
Inventory Disclosure [Abstract]
Inventory Valuation Reserves	$ 10.0	$ 10.3

Product Warranties

12 Months Ended

Apr. 30, 2026

Product Warranties Disclosures [Abstract]

Product Warranty Disclosure [Text Block]

14. Product Warranties

The Company generally provides its customers with a one-year warranty regarding the manufactured quality and functionality of its products. The Company establishes warranty reserves based on its product history, current information on repair costs and annual sales levels. As of April 30, 2026 and 2025, respectively, changes in the carrying amount of accrued product warranty costs, reported in accrued expenses on the consolidated balance sheets, were as follows (in thousands):

	2026			2025
Balance at beginning of year	$	567		$	542
Warranty costs incurred		(438	)		(253	)
Product warranty accrual		388			278
Balance at end of year	$	517		$	567

Right-of-Use Assets and Lease Liabilities (Tables)

12 Months Ended

Apr. 30, 2026

Disclosure Text Block [Abstract]

Lease, Cost [Table Text Block]

The table below presents ROU assets and lease liabilities recorded on the consolidated balance sheets as follows:

	Classification	April 30, 2026		April 30, 2025
		(In thousands)
Assets
Right-of-use assets - operating leases	Right-of-use assets leases	$	7,409	$	8,659

Liabilities
Operating lease liabilities, current portion	Lease liability, current		2,002		2,027
Operating lease liabilities, non-current portion	Lease liability, non-current		5,648		6,729
Total lease liabilities		$	7,650	$	8,756

Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]

The table below reconciles the undiscounted cash flows for each of the next five fiscal years and total of the remaining fiscal years to the operating lease liabilities recorded on the consolidated balance sheet as of April 30, 2026:

Fiscal Year Ending April 30,
(in thousands)

2027	$	2,064
2028		2,388
2029		2,535
2030		1,658
2031		45
Thereafter		-
Total lease payments		8,690
Less imputed interest		(1,040	)
Present value of future lease payments		7,650
Less current obligations under leases		(2,002	)
Long-term lease obligations	$	5,648

Right-of-Use Assets and Lease Liabilities

12 Months Ended

Apr. 30, 2026

Disclosure Text Block [Abstract]

Lessee, Operating Leases [Text Block]

6. Right-of-Use Assets and Lease Liabilities

The Company’s leases primarily represent offices, warehouses, vehicles, manufacturing and R&D facilities, which expire at various times through 2030 and are operating leases. Contractual arrangements are evaluated at inception to determine if the agreement contains a lease. The leases contain renewal options, early termination, rent abatement, and escalation clauses that are factored into our determination of lease payments when appropriate. We include options to extend or terminate leases in the right-of-use (“ROU”) operating lease asset and liability when it is reasonably certain we will exercise these options. As of April 30, 2026, lease options were not included in the calculation of the ROU operating lease asset and liability. ROU assets and lease liabilities are recorded based on the present value of future lease payments which will factor in certain qualifying initial direct costs incurred as well as any lease incentives that may have been received. Lease expenses for operating lease payments are recognized on a straight-line basis over the lease term.

The Company elected the practical expedient for short-term leases which allows leases with terms of twelve months or less to be recorded on a straight-line basis over the lease term without being recognized on the consolidated balance sheet. The Company has also elected the practical expedient to account for lease and non-lease components as a single component.

The table below presents ROU assets and lease liabilities recorded on the consolidated balance sheets as follows:

	Classification	April 30, 2026		April 30, 2025
		(In thousands)
Assets
Right-of-use assets - operating leases	Right-of-use assets leases	$	7,409	$	8,659

Liabilities
Operating lease liabilities, current portion	Lease liability, current		2,002		2,027
Operating lease liabilities, non-current portion	Lease liability, non-current		5,648		6,729
Total lease liabilities		$	7,650	$	8,756

Total operating lease expense was approximately $2.5 million, of which approximately $0.5 million was attributable to variable lease expenses, for fiscal year ended April 30, 2026, the majority of which is included in cost of revenues and the remaining amount in selling and administrative expenses on the consolidated statements of operations. Total operating lease expense was approximately $1.9 million, of which approximately $0.4 million was attributable to variable lease expenses, for fiscal year ended April 30, 2025, the majority of which is included in cost of revenues and the remaining amount in selling and administrative expenses on the consolidated statements of operations. In addition, the Company made cash payments of $2.3 million and $1.9 million for operating leases during the fiscal years ended April 30, 2026 and 2025, respectively, which are included in cash flows from operating activities in our consolidated statements of cash flows. During the year ended April 30, 2026, the Company recorded incremental ROU assets and lease liabilities of approximately $0.4 million arising from a new lease for FEI-NY, which commenced during the quarter ended October 31, 2025. During the year ended April 30, 2025, the Company recorded incremental ROU assets and lease liabilities of approximately $4.1 million arising from the third amendment to the FEI-Zyfer lease, which commenced in fiscal year 2025. There were no ROU assets or lease liabilities that were recorded for any leases that had not commenced as of April 30, 2026.

Fiscal Year Ending April 30,
(in thousands)

2027	$	2,064
2028		2,388
2029		2,535
2030		1,658
2031		45
Thereafter		-
Total lease payments		8,690
Less imputed interest		(1,040	)
Present value of future lease payments		7,650
Less current obligations under leases		(2,002	)
Long-term lease obligations	$	5,648

As of April 30, 2026 and 2025, the weighted-average remaining lease term for all operating leases was 3.9 years and 4.5 years, respectively. The Company does not generally have access to the rate implicit in the leases, therefore, we use a discount rate based on our incremental borrowing rate, which is determined using our credit rating and information available as of the commencement date. The weighted average discount rate for operating leases as of April 30, 2026 and 2025, was 7.09% and 6.85%, respectively.

Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Schedule Of Unrecognized Tax Benefits Roll Forward Abstract
Balance at the beginning of the fiscal year	$ 144	$ 111
Additions based on positions taken in the current year	41	0
Additions based on positions taken in prior years	11	45
Decreases based on positions taken in prior years	0	(12)
Lapse in statute of limitations	0	0
Balance at the end of the fiscal year	$ 196	$ 144

Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Schedule Of Accrued Liabilities Abstract
Vacation and other compensation	$ 1,822	$ 1,575
Incentive compensation	191	1,347
Payroll taxes	665	712
Warranty reserve	517	567
Commissions	19	24
Deferred compensation payable	634	634
Other	2,634	1,040
Total	$ 6,482	$ 5,899

Segment Information (Details) $ in Thousands	12 Months Ended
Segment Information (Details) $ in Thousands	Apr. 30, 2026 USD ($) segment	Apr. 30, 2025 USD ($)
Segment Information (Details) [Line Items]
Number of Reportable Segments (in segment) \| segment	2
Number of Operating Segments (in segment) \| segment	2
Revenues	$ 63,227	$ 69,811
Frequency Electronics Inc New York [Member]
Segment Information (Details) [Line Items]
Number Of Principal Markets	3
Other Operating Income	$ 11,500	9,100
Frequency Electronics Inc Zyfer [Member]
Segment Information (Details) [Line Items]
Other Operating Income	3,200	2,600
One Asian Country [Member]
Segment Information (Details) [Line Items]
Selling and Marketing Expense	3,800	3,500
Customer One [Member] \| Frequency Electronics Inc New York [Member]
Segment Information (Details) [Line Items]
Revenues	7,000	2,900
Customer One [Member] \| Frequency Electronics Inc Zyfer [Member]
Segment Information (Details) [Line Items]
Revenues	8,100	26,900
Customer Two [Member] \| Frequency Electronics Inc New York [Member]
Segment Information (Details) [Line Items]
Revenues	5,500	$ 3,400
Customer Three [Member] \| Frequency Electronics Inc New York [Member]
Segment Information (Details) [Line Items]
Revenues	5,300
Customer Four [Member] \| Frequency Electronics Inc New York [Member]
Segment Information (Details) [Line Items]
Revenues	$ 5,100
Customer Concentration Risk [Member] \| U.S. Government and U.S. Government Subcontractors [Member] \| Revenue Benchmark [Member]
Segment Information (Details) [Line Items]
Concentration Risk, Percentage	91.00%	94.00%

Restricted Cash (Details) - USD ($) $ in Millions	Apr. 30, 2026	Apr. 30, 2025
Disclosure Text Block Supplement [Abstract]
Restricted Cash	$ 1.3	$ 1.4

- Definition

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References + Details

Restricted Cash - Reconciliation of Cash and Cash Equivalents And Restricted Cash (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2024
Reconciliation Of Cash And Cash Equivalents And Restricted Cash Abstract
Cash and cash equivalents	$ 1,603	$ 4,720
Restricted cash	1,331	1,365
Total cash and cash equivalents and restricted cash	$ 2,934	$ 6,085	$ 19,265

Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Current assets:
Cash and cash equivalents	$ 1,603	$ 4,720
Accounts receivable, net of allowances of $39 at April 30, 2026 and $110 at April 30, 2025	4,740	5,914
Contract assets	17,277	17,914
Inventories	22,618	23,487
Prepaid income taxes	221	0
Prepaid expenses and other	1,517	1,071
Total current assets	47,976	53,106
Property, plant, and equipment, net	7,105	6,188
Deferred taxes	14,084	12,045
Goodwill	218	617
Cash surrender value of life insurance and assets held in trust	11,744	10,882
Right-of-use assets – operating leases	7,409	8,659
Restricted cash	1,331	1,365
Other assets	839	875
Total assets	90,706	93,737
Current liabilities:
Accounts payable – trade	2,979	1,359
Accrued liabilities	6,482	5,899
Loss provision accrual	103	460
Income taxes payable	0	103
Operating lease liability, current portion	2,002	2,027
Contract liabilities	9,418	13,607
Total current liabilities	20,984	23,455
Deferred compensation	7,664	7,933
Operating lease liability, non-current portion	5,648	6,729
Other liabilities	7	0
Total liabilities	34,303	38,117
Contingencies (Note 15)	0	0
Stockholders’ equity:
Preferred stock - $1.00 par value; authorized 600 shares, no shares issued and outstanding	0	0
Common stock - $1.00 par value; authorized 20,000 shares, 9,925 shares issued and 9,869 shares outstanding at April 30, 2026; 9,717 shares issued and 9,704 shares outstanding at April 30, 2025	9,925	9,717
Additional paid-in capital	45,506	42,475
Retained earnings	2,756	3,659
Common stock reacquired and held in treasury at cost (56 shares at April 30, 2026 and 13 shares at April 30, 2025)	(1,784)	(231)
Total stockholders’ equity	56,403	55,620
Total liabilities and stockholders’ equity	$ 90,706	$ 93,737

Employee Benefit Plans - Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity (Details) - RSUs and PSUs [Member] - $ / shares	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2024
Employee Benefit Plans - Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity (Details) [Line Items]
Balance, Shares	436,148	529,849	474,569
Balance, Weighted-Average Exercise Price	$ 20.01	$ 9.12	$ 6.94
Shares Granted	112,048	187,250
Granted, Weighted-Average Exercise Price	$ 52.65	$ 13.13
Shares Vested	(171,629)	(131,970)
Vested, Weighted-Average Exercise Price	$ 8.84	$ 6.95
Shares Forfeited	(34,120)	0
Forfeited, Weighted-Average Exercise Price	$ 14.28	$ 0

Segment Information - Schedule of Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Identifiable assets:
Identifiable assets	$ 90,706	$ 93,737
Frequency Electronics Inc New York [Member]
Identifiable assets:
Identifiable assets	40,849	39,125
Frequency Electronics Inc Zyfer [Member]
Identifiable assets:
Identifiable assets	23,759	23,865
Inter Segment [Member]
Identifiable assets:
Identifiable assets	(814)	(140)
Corporate Segment [Member]
Identifiable assets:
Identifiable assets	$ 26,912	$ 30,887

- Definition

Amount of asset recognized for present right to economic benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Income Statement [Abstract]
Revenues	$ 63,227	$ 69,811
Cost of revenues	44,831	39,714
Gross margin	18,396	30,097
Selling and administrative expenses	15,403	12,289
Research and development expenses	5,994	6,076
Operating (loss) income	(3,001)	11,732
Other income (expense):
Income on investments	673	519
Interest expense	(87)	(104)
Other expense, net	(493)	(3)
(Loss) income before benefit from income taxes	(2,908)	12,144
Benefit from income taxes	(2,005)	(11,542)
Net (loss) income	$ (903)	$ 23,686
Net (loss) income per common share:
Basic (loss) income per share (in Dollars per share)	$ (0.09)	$ 2.46
Diluted (loss) income per share (in Dollars per share)	$ (0.09)	$ 2.46
Weighted average shares outstanding:
Basic (in Shares)	9,783,358	9,611,914
Diluted (in Shares)	9,783,358	9,614,536

Investment in Morion, Inc.

12 Months Ended

Apr. 30, 2026

Schedule of Investments [Abstract]

Investment Holdings [Text Block]

9. Investment in Morion, Inc.

The Company has an investment in Morion, a privately-held Russian company, which manufactures high precision quartz resonators and crystal oscillators. The Company has also licensed certain technology to Morion.

The Company’s investment consists of 4.6% of Morion’s outstanding shares. However, due to the Russia-Ukraine conflict and resulting sanctions the future status of FEI’s investment in Morion became uncertain and accordingly, such investment was written off in fiscal year 2022. The carrying value of this investment is $0 as of April 30, 2026 and 2025.

During the fiscal years ended April 30, 2026 and 2025, the Company did not acquire any product from Morion. During the fiscal years ended April 30, 2026 and 2025, the Company sold no product and no training devices to Morion, and the Company received no dividends from Morion.

Prior purchases of materials from Morion consisted mainly of quartz crystal blanks, which were used in the fabrication of quartz resonators. However, on October 30, 2024, the U.S. Department of Treasury’s Office of Foreign Assets Control designated Morion as a Specially Designated National, resulting in the blocking of all Morion property and property interests. As a result, the Company terminated all commercial relationships with Morion, including the licensing of technology to Morion and the purchase of any products from Morion. The Company has established alternate sources of supply with respect to items previously acquired from Morion. The Company is also capable of fabricating the crystal blanks in-house.

Subsequent events (Details) - LLC [Member] - Subsequent Event [Member] $ in Millions	Jul. 01, 2026 USD ($)
Subsequent events (Details) [Line Items]
Business Combination, Voting Equity Interest Acquired, Percentage	20.00%
Business Combination, Consideration Transferred (in Dollars)	$ 0.5
Business Combination, Achieved in Stages, Preacquisition and Acquired Equity Interests in Acquiree, Percentage	25.00%

Debt Obligations

12 Months Ended

Apr. 30, 2026

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

7. Debt Obligations

As of April 30, 2026 and 2025, the Company had no debt obligations nor any borrowing capacity pursuant to a credit facility.

On June 12, 2026, the Company entered into a senior, secured revolving credit facility with JPMorgan Chase Bank, N.A., as the lender (the “Credit Agreement”). The Credit Agreement provides for a three-year revolving credit facility of $10,000,000, of which up to $5,000,000 is available for the issuance of letters of credit. The Credit Agreement provides that the Company may, at its option, increase the aggregate amount of the revolving credit facility in an amount up to $10,000,000, subject to certain customary conditions and on the terms set forth in the Credit Agreement. There can be no assurance that additional funding will become available. Commitments under the revolving credit facility are subject to a commitment fee of 0.35% per annum on the daily amount of the undrawn portion of the revolving credit facility. The Company’s obligations under the Credit Agreement are guaranteed by FEI-Zyfer (the “Subsidiary Guarantor”). The revolving credit facility matures on June 12, 2029.

The Company and the Subsidiary Guarantor also entered into a separate pledge and security agreement (the “Security Agreement”) with JPMorgan Chase Bank, N.A., as lender, pursuant to which the Company and the Subsidiary Guarantor each pledged all or substantially all of its assets, including equity in its domestic subsidiaries, in favor of the lender as collateral for the obligations under the Credit Agreement and the other loan documents.

Loans designated by the Company at the time of borrowing as “CBFR Borrowings” that are outstanding under the Credit Agreement bear interest at a rate per annum equal to (i) the greater of (a) the Prime Rate (as defined in the Credit Agreement) in effect on such day or (b) 2.50%; plus (ii) 2.50%. Loans designated by the Company at the time of borrowing as “SOFR Borrowings” that are outstanding under the Credit Agreement bear interest at a rate per annum equal to the Adjusted Term SOFR Rate (as defined in the Credit Agreement) for the interest period in effect for such borrowing plus 2.50%. Under the terms of the Credit Agreement, accrued interest on each loan is payable in arrears on the applicable interest payment date for each loan. The loans under the Credit Agreement may be prepaid at any time without premium or penalty (other than any accrued interest or breakage costs, if applicable). The Company expects that the proceeds from the Credit Agreement will be used for general corporate purposes and to provide general working capital.

The Credit Agreement contains customary affirmative and negative covenants, including limitations on mergers, consolidations and sales of assets, limitations on indebtedness, liens and sales and leasebacks, limitations on transactions with affiliates, limitations on investments, limitations on dividends and distributions and limitations on swap agreements, as well as other customary terms and provisions. In addition, the Credit Agreement contains financial covenants specifying that, as of the end of each fiscal quarter commencing with the fiscal quarter ended July 31, 2026, (i) the total leverage ratio will not exceed 2.25 to 1.00 and (ii) the fixed charge coverage ratio will not be less than 1.25 to 1.00. The Credit Agreement also contains events of default customary for such financings, the occurrence of which would permit the lenders to accelerate the amount due thereunder. Such events of default include failure to pay principal, failure to pay interest and other amounts within three days of the due date, failure to comply with a covenant beyond any applicable grace period, material misrepresentations, default beyond the applicable grace period on other material indebtedness, certain events of bankruptcy or insolvency of the Company and its subsidiaries, guarantor defaults, judgment defaults and change of control, among others.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

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+ Details

Subsequent events

12 Months Ended

Apr. 30, 2026

Subsequent Events [Abstract]

Subsequent Events [Text Block]

16. Subsequent events

On July 1, 2026, the Company acquired a 20% minority interest in an LLC for $0.5 million. Pursuant to the transaction, the Company may be required to purchase up to an additional 25% interest subsequent to the closing of the initial agreement. The Company is currently in the process of evaluating the accounting treatment for this transaction.

Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Current:
Federal	$ 18	$ 137
State	16	374
Current provision	34	511
Deferred:
Federal	(1,501)	(9,634)
State	(538)	(2,419)
Deferred tax benefit	(2,039)	(12,053)
Total benefit	$ (2,005)	$ (11,542)

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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+ Details

Summary of Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Summary of Accounting Policies (Details) [Line Items]
Revenues	$ 63,227	$ 69,811
Inventory Write-down	(323)	1,248
General and Administrative Expense	400
Loss on investment due to restructuring	400
Restructuring [Member]
Summary of Accounting Policies (Details) [Line Items]
Inventory Write-down	$ 3,800
Building [Member]
Summary of Accounting Policies (Details) [Line Items]
Property, Plant, and Equipment, Useful Life	40 years
Minimum [Member] \| Other Depreciable Assets [Member]
Summary of Accounting Policies (Details) [Line Items]
Property, Plant, and Equipment, Useful Life	3 years
Maximum [Member] \| Other Depreciable Assets [Member]
Summary of Accounting Policies (Details) [Line Items]
Property, Plant, and Equipment, Useful Life	10 years
POC Revenue [Member]
Summary of Accounting Policies (Details) [Line Items]
Revenues	$ 57,700	$ 65,800

Employee Benefit Plans (Tables)

12 Months Ended

Apr. 30, 2026

Disclosure Text Block Supplement [Abstract]

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

The following table summarizes information about stock option and SARs activity for the fiscal years ended April 30, 2026 and 2025:

	Stock Options and Stock Appreciation Rights
				Weighted- Average					Weighted Average Remaining	Aggregate
				Exercise		Grant Date			Contractual	Intrinsic
	Shares			Price		Fair Value			Term	Value
Outstanding – April 30, 2024		86,000		$	13.01	$	1,118,640		0.9 years	$	-
Granted		-			-		-
Exercised		(20,000	)		12.24		(244,800	)			(127,200	)
Expired or canceled		(66,000	)		13.24		(873,840	)
Outstanding – April 30, 2025		-		$	-	$	-			$	-
Available for future grants		1,269,186

Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

The following table summarizes activity for the RSUs and PSUs awards that reduce available capacity under the 2025 Plan for the fiscal years ended April 30, 2026 and 2025:

				Weighted- Average
	Shares			Grant Date Fair Value
Balance – April 30, 2024		474,569		$	6.94
Granted		187,250			13.13
Vested		(131,970	)		6.95
Forfeited		-			-
Balance – April 30, 2025		529,849		$	9.12
Granted		112,048			52.65
Vested		(171,629	)		8.84
Forfeited		(34,120	)		14.28
Balance – April 30, 2026		436,148		$	20.01

Income Taxes - Schedule of Financial Reporting Purposes, (Loss) Income Before Benefit for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Schedule Of Financial Reporting Purposes Loss Income Before Benefit For Income Taxes Abstract
Domestic operations	$ (2,908)	$ 12,144
(Loss) income before income taxes	$ (2,908)	$ 12,144

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details

Property, Plant and Equipment, Net

12 Months Ended

Apr. 30, 2026

Property, Plant, and Equipment [Abstract]

Property, Plant, and Equipment [Text Block]

5. Property, Plant and Equipment, net

Property, plant and equipment, net, at April 30, 2026 and 2025, consisted of the following (in thousands):

	April 30, 2026			April 30, 2025

Buildings and building improvements	$	3,325		$	2,923
Machinery, equipment and furniture		36,915			63,347
		40,240			66,270
Less accumulated depreciation		(33,135	)		(60,082	)
	$	7,105		$	6,188

Depreciation and amortization expense were $1.9 million and $2.1 million for the fiscal years ended April 30, 2026 and 2025, respectively.

During the second quarter of fiscal year 2026, the Company completed a comprehensive review of its fully depreciated fixed assets. As a result, the Company identified certain machinery, equipment, and computer hardware that was no longer in use or obsolete. The Company wrote off $28.9 million of gross fixed assets that had a net book value of zero.

- Definition

The entire disclosure for property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Summary of Accounting Policies

12 Months Ended

Apr. 30, 2026

Accounting Policies [Abstract]

Significant Accounting Policies [Text Block]

1. Summary of Accounting Policies

Organization

The Company is principally engaged in the design, development and manufacture of precision time and frequency control products and components for microwave integrated circuit applications.

Basis of Presentation and Principles of Consolidation:

Use of Estimates:

Cash Equivalents:

Accounts Receivable and Allowance for Credit Losses:

Property, Plant and Equipment:

Depreciation and Amortization:

Inventories:

Goodwill:

Revenue and Cost Recognition:

Practical Expedients

The Company expenses sales commissions as sales and marketing expenses in the period they are incurred if the expected amortization period is one year or less.

Disaggregation of Revenue

	Fiscal Year Ended April 30, 2026
	(In thousands)
	POC Revenue		POT Revenue			Total Revenue
FEI-NY	$	40,263	$	5,388		$	45,651
FEI-Zyfer		17,421		4,310			21,731
Intersegment		-		(4,155	)		(4,155	)
Revenue	$	57,684	$	5,543		$	63,227

	Fiscal Year Ended April 30, 2025
	(In thousands)
	POC Revenue		POT Revenue			Total Revenue
FEI-NY	$	49,585	$	3,684		$	53,269
FEI-Zyfer		16,206		2,454			18,660
Intersegment		-		(2,118	)		(2,118	)
Revenue	$	65,791	$	4,020		$	69,811

	Fiscal Years Ended April 30,
	(in thousands)
	2026		2025
Revenues by Product Line:
Satellite revenue	$	23,128	$	40,897
Government non-space revenue		38,011		26,549
Other commercial & industrial revenue		2,088		2,365
Consolidated revenues	$	63,227	$	69,811

Research and Development:

Income Taxes:

Earnings (Loss) per Share:

Fair Values of Financial Instruments:

The levels of the fair value hierarchy are described below:

Level 1

Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities.

Level 2

Level 3

Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

Equity-based Compensation:

Concentration of Credit Risk:

Restructuring:

New Accounting Pronouncements:

Reclassifications:

Certain amounts in prior years have been reclassified to conform to the current year presentation.

Consolidated Statements of Changes in Stockholders’ Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Apr. 30, 2024	$ 9,512	$ 50,334	$ (20,027)	$ (3)	$ 0	$ 39,816
Balance (in Shares) at Apr. 30, 2024	9,511,560			741
Statement [Line Items]
Exercise of stock options	$ 2	(151)		$ 149		0
Exercise of stock options (in Shares)	1,819			(11,917)
Contribution of stock to 401(k) plan	$ 70	831				901
Contribution of stock to 401(k) plan (in Shares)	70,100
Stock-based compensation expense	$ 133	1,028				1,161
Stock-based compensation expense (in Shares)	133,520
Shares withheld on employee taxes on vested equity awards				$ (377)		(377)
Shares withheld on employee taxes on vested equity awards (in Shares)				24,264
Dividends		(9,567)				(9,567)
Net income (loss)			23,686			23,686
Balance at Apr. 30, 2025	$ 9,717	42,475	3,659	$ (231)	0	55,620
Balance (in Shares) at Apr. 30, 2025	9,716,999			13,088
Statement [Line Items]
Contribution of stock to 401(k) plan	$ 36	1,250				1,286
Contribution of stock to 401(k) plan (in Shares)	36,067
Stock-based compensation expense	$ 172	1,781		$ 21		1,974
Stock-based compensation expense (in Shares)	171,629			(1,650)
Shares withheld on employee taxes on vested equity awards				$ (1,574)		(1,574)
Shares withheld on employee taxes on vested equity awards (in Shares)				44,389
Dividends						0
Net income (loss)			(903)			(903)
Balance at Apr. 30, 2026	$ 9,925	$ 45,506	$ 2,756	$ (1,784)	$ 0	$ 56,403
Balance (in Shares) at Apr. 30, 2026	9,924,695			55,827

Product Warranties (Details)	12 Months Ended
Product Warranties (Details)	Apr. 30, 2026
Product Warranties Disclosures [Abstract]
Standard Product Warranty Description	The Company generally provides its customers with a one-year warranty regarding the manufactured quality and functionality of its products.

Consolidated Balance Sheets (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Apr. 30, 2026	Apr. 30, 2025
Statement of Financial Position [Abstract]
Allowances	$ 39	$ 110
Preferred stock, par value (in Dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in Shares)	600	600
Preferred stock, shares issued (in Shares)	0	0
Preferred stock, shares outstanding (in Shares)	0	0
Common stock, par value (in Dollars per share)	$ 1	$ 1
Common stock, shares authorized (in Shares)	20,000	20,000
Common stock shares issued (in Shares)	9,925	9,717
Common stock shares outstanding (in Shares)	9,869	9,704
Common stock reacquired and held in treasury, shares (in Shares)	56	13

Contract Assets and Liabilities (Tables)

12 Months Ended

Apr. 30, 2026

Contractors [Abstract]

Schedule of Contract Assets and Liabilities

At April 30, 2026, 2025, and 2024, contract assets, contract liabilities, and accounts receivable, net consisted of the following (in thousands):

	April 30, 2026			April 30, 2025			April 30, 2024

Contract Assets	$	17,277		$	17,914		$	10,523
Contract Liabilities	$	(9,418	)	$	(13,607	)	$	(21,639	)
Accounts receivable, net	$	4,740		$	5,914		$	4,614

Summary of Accounting Policies (Tables)

12 Months Ended

Apr. 30, 2026

Accounting Policies [Abstract]

Disaggregation of Revenue [Table Text Block]

The amounts by segment and product line were as follows:

	Fiscal Year Ended April 30, 2026
	(In thousands)
	POC Revenue		POT Revenue			Total Revenue
FEI-NY	$	40,263	$	5,388		$	45,651
FEI-Zyfer		17,421		4,310			21,731
Intersegment		-		(4,155	)		(4,155	)
Revenue	$	57,684	$	5,543		$	63,227

	Fiscal Year Ended April 30, 2025
	(In thousands)
	POC Revenue		POT Revenue			Total Revenue
FEI-NY	$	49,585	$	3,684		$	53,269
FEI-Zyfer		16,206		2,454			18,660
Intersegment		-		(2,118	)		(2,118	)
Revenue	$	65,791	$	4,020		$	69,811

Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Table Text Block]

	Fiscal Years Ended April 30,
	(in thousands)
	2026		2025
Revenues by Product Line:
Satellite revenue	$	23,128	$	40,897
Government non-space revenue		38,011		26,549
Other commercial & industrial revenue		2,088		2,365
Consolidated revenues	$	63,227	$	69,811

Income Taxes

12 Months Ended

Apr. 30, 2026

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

12. Income Taxes

On July 4, 2025, President Trump signed H.R.1, the One Big Beautiful Bill Act (“OBBBA”) into law. In accordance with U.S. GAAP, the Company accounted for the tax effects of changes in tax law in the period of enactment during the first quarter of fiscal year 2026. The OBBBA made changes to the U.S. tax code, including, but not limited to: (1) allowing taxpayers to fully deduct domestic research expenditures for tax years beginning after December 31, 2024, (2) provides a catch-up relief provision for taxpayers to accelerate deductions for unamortized domestic research expenditures, (3) provides a permanent provision for 100% bonus depreciation deductions for most tangible personal property with a recovery period of 20 years or less, acquired and placed in service after January 19, 2025, and (4) for tax years beginning after December 31, 2024, restores Adjusted Taxable Income by adding back amortization and depreciation to calculate the limitation on interest deductions (effectively returning to EBITDA). The enactment of the OBBBA did not have a material impact on our provision or effective tax rate as of April 30, 2026. We continue to evaluate the OBBBA and its requirements, as well as its application to our business and its impact on cash taxes and our effective tax rate.

For financial reporting purposes, (Loss) income before benefit for income taxes, includes the following components (in thousands):

	Fiscal Year Ended April 30,
	2026			2025
Domestic operations	$	(2,908	)	$	12,144
(Loss) income before income taxes	$	(2,908	)	$	12,144

The benefit from income taxes consisted of the following (in thousands):

	Fiscal Year Ended April 30,
	2026			2025
Current:
Federal	$	18		$	137
State		16			374
Current provision		34			511
Deferred:
Federal		(1,501	)		(9,634	)
State		(538	)		(2,419	)
Deferred tax benefit		(2,039	)		(12,053	)

Total benefit	$	(2,005	)	$	(11,542	)

The difference between the federal statutory rate of 21% and the Company’s effective tax rate after the adoption of ASU 2023-09 is summarized as follows (in thousands):

	Fiscal Year Ended April 30, 2026
	Amount			%
Income tax at statutory federal tax rate	$	(611	)		21.0	%
State and local income tax, net of federal income tax effect		(417	)		14.4	%
Changes in valuation allowances		(19	)		0.6	%
Nontaxable or nondeductible items:
Stock Based Compensation		(1,205	)		41.5	%
Non-deductible officer’s compensation		246			(8.5	)%
Goodwill Write-off		84			(2.9	)%
Other nontaxable or nondeductible items		(1	)		0.1	%
Research and Development Tax credits		(176	)		6.0	%
Changes in unrecognized tax benefits		5			(0.2	)%
Other		89			(3.0	)%
Total benefit	$	(2,005	)		69.0	%

In the fiscal year ended April 30, 2026, state and local income taxes in California comprise the majority of the state and local income taxes, net of the federal income tax effect category.

The difference between the federal statutory rate of 21% and the Company’s effective tax rate before the adoption of ASU 2023-09 is summarized as follows:

	Fiscal Year Ended
	April 30, 2025
Statutory rate	$	2,550
State and local tax		223
Valuation allowance on deferred tax assets		(13,874	)
Nondeductible expenses		5
FDII		(81	)
Nontaxable life insurance cash value increase		(65	)
Stock compensation		(153	)
Tax credits		(319	)
Change in tax rate		173
Other items		(1	)
Total benefit	$	(11,542	)

The components of deferred taxes are as follows (in thousands):

	Fiscal Year Ended April 30,
	2026			2025
Deferred tax assets:
Employee benefits	$	2,901		$	2,810
Inventory		4,081			2,876
Accounts receivable		95			144
Tax credits		2,111			1,945
Property, plant and equipment		87			-
Deferred costs		1,355			1,511
Lease liability		1,898			2,128
Capital loss carry-forward		176			194
Research & development		1,693			2,247
Net operating loss carryforwards		3,649			2,276
Other assets		305			301
Total deferred tax asset		18,351			16,432
Deferred tax liabilities:
Property, plant and equipment		-			(74	)
Right of use asset		(1,838	)		(2,104	)
Other liabilities		(177	)		(77	)
Deferred state income tax		(897	)		(779	)
Net deferred tax asset		15,439			13,398
Valuation allowance		(1,355	)		(1,353	)
Net deferred tax asset	$	14,084		$	12,045

In assessing the potential for realization of deferred tax assets, the Company considers whether it is more-likely-than-not that some portion or all of the deferred tax assets will be realized. A valuation allowance, if needed, reduces the deferred tax assets to the amounts expected to be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income in those periods in which temporary differences become deductible and/or net operating loss carryforwards can be utilized. We assess all positive and negative evidence when determining the amount of the net deferred tax assets that are more-likely-than-not to be realized. This evidence includes, but is not limited to, prior earnings history, scheduled reversal of taxable temporary differences, tax planning strategies and projected future taxable income. Significant weight is given to positive and negative evidence that is objectively verifiable. Concluding that a valuation allowance is not needed is difficult when there is significant negative evidence such as cumulative losses in recent years.

	Fiscal Year Ended
	April 30, 2026
Balance at the beginning of the fiscal year	$	1,353
Changed charged to income tax expense		2
Balance at the end of the fiscal year	$	1,355

The Company maintains a valuation allowance of approximately $1.4 million against certain deferred tax assets including state tax credits and capital loss carryforwards because the realization of these tax attributes requires sufficient taxable income be sourced to the respective state jurisdiction and capital gain income is required to utilize capital losses. The Company will continue to evaluate the realizability of its deferred tax assets quarterly. Any further increases or decreases in the valuation allowance could have an unfavorable or favorable impact on the Company’s income tax provision and net income in the period in which such determination is made. As of April 30, 2026, the deferred tax asset is recorded at its more-likely-than-not realizable amount.

As of April 30, 2026, the Company has U.S. federal net operating losses of $10.9 million of which $1.7 million begins to expire in fiscal year 2027 through fiscal year 2031. The U.S. federal net operating losses of $10.9 million includes $1.7 million which is subject to an annual limitation under Internal Revenue Code Section 382. The remaining U.S. federal net operating losses of $9.2 million have an indefinite carry-forward period. The U.S. federal capital loss carry-forward of $0.7 million expires in fiscal year 2028. U.S. federal R&D credits of $0.8 million begin to expire in fiscal year 2038 through fiscal year 2046. The Company also has state net operating loss carryforwards, and state tax credits that expire in various years and amounts.

A reconciliation of the beginning and ending amounts of unrecognized tax benefits, is as follows (in thousands):

	2026		2025
Balance at the beginning of the fiscal year	$	144	$	111
Additions based on positions taken in the current year		41		-
Additions based on positions taken in prior years		11		45
Decreases based on positions taken in prior years		-		(12	)
Lapse in statute of limitations		-		-
Balance at the end of the fiscal year	$	196	$	144

The entire amount reflected in the above table at April 30, 2026, if recognized, would reduce our effective tax rate. As of April 30, 2026 and 2025, the Company did not recognize or accrue for the payment of interest or penalties.

The Company is subject to taxation in the U.S. federal, and various state and local, jurisdictions. The Company is no longer subject to examination of its U.S. federal income tax returns by the Internal Revenue Service for fiscal years 2021 and prior. Net operating losses and tax attributes generated in closed years and utilized in open years are subject to adjustment by the tax authorities.

Cash taxes paid were as follows (in thousands):

	Fiscal Year Ended
	April 30, 2026
Federal	$	100
State and local		251
Total	$	351

Income taxes paid (net of refunds) exceeded 5% of total income taxes paid (net of refunds) in the following jurisdictions:

	Fiscal Year Ended
	April 30, 2026
Federal	$	100
State and local
California		223
Texas		20
Other		8
Total	$	351

- Definition

The entire disclosure for income tax.

+ References

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-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-14

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-21

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-17

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479360/740-10-S99-2

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482603/740-30-50-2

+ Details

Earnings Per Share (Tables)

12 Months Ended

Apr. 30, 2026

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Reconciliations of the weighted average shares outstanding for basic and diluted earnings per share for the fiscal years ended April 30, 2026 and 2025, respectively, were as follows:

	For the Fiscal Years Ended April 30,
	2026		2025
Weighted average shares outstanding:
Basic EPS Shares outstanding (weighted average)		9,783,358		9,611,914
Effect of Dilutive Securities		**		2,622
Diluted EPS Shares outstanding		9,783,358		9,614,536

For the fiscal year ended April 30, 2026, there were no shares to exclude from the calculation of dilutive securities. There were no shares excluded for the fiscal year ended April 30, 2025.

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Cash flows from operating activities:
Net (loss) income	$ (903)	$ 23,686
Depreciation and amortization	1,888	2,055
Amortization of operating leases	2,459	1,895
(Recovery) provision for losses on accounts receivable, other assets, and warranty reserve	(201)	314
Provision for inventory reserve	(323)	1,248
Deferred taxes	(2,039)	(12,053)
(Recovery) loss provision accrual	(357)	56
Loss on sale of fixed and other assets	55	3
Derecognition of goodwill	399
Inventory write off due to restructuring	3,768
Employee benefit plans expense	1,655	1,399
Stock-based compensation expense	1,974	1,161
Changes in operating assets and liabilities:
Accounts receivable	1,245	(1,300)
Contract assets	772	(7,706)
Inventories	(2,577)	(1,303)
Prepaid expenses and other	(446)	125
Other assets	(825)	(661)
Accounts payable - trade	1,620	(989)
Accrued liabilities	578	1,135
Contract liabilities	(4,189)	(8,032)
Operating lease liabilities	(2,315)	(1,947)
Prepaid income taxes	(324)	140
Other liabilities	(632)	(654)
Net cash provided by (used in) operating activities	1,282	(1,428)
Cash flows from investing activities:
Capital expenditures	(2,859)	(1,808)
Net cash used in investing activities	(2,859)	(1,808)
Cash flows from financing activities:
Payment of dividend	0	(9,567)
Purchase of treasury stock	(1,574)	(377)
Net cash used in financing activities	(1,574)	(9,944)
Net decrease in cash and cash equivalents and restricted cash	(3,151)	(13,180)
Cash and cash equivalents and restricted cash at beginning of year	6,085	19,265
Cash and cash equivalents and restricted cash at end of year	2,934	6,085
Supplemental disclosures of cash flow information:
Interest	87	104
Income taxes	351	371
Right-of-use assets obtained in exchange for operating lease liabilities	$ 438	$ 4,122

Restricted Cash (Tables)

12 Months Ended

Apr. 30, 2026

Disclosure Text Block Supplement [Abstract]

Restrictions on Cash and Cash Equivalents [Table Text Block]

A reconciliation of cash and cash equivalents and restricted cash from the consolidated balance sheets to the consolidated statements of cash flows is shown below (in thousands):

	April 30, 2026		April 30, 2025
Cash and cash equivalents	$	1,603	$	4,720
Restricted cash		1,331		1,365
Total cash and cash equivalents and restricted cash	$	2,934	$	6,085

Segment Information - Schedule of Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Segment Information - Schedule of Revenue from External Customers by Geographic Areas (Details) [Line Items]
Revenues	$ 63,227	$ 69,811
Geographic Distribution, Domestic [Member]
Segment Information - Schedule of Revenue from External Customers by Geographic Areas (Details) [Line Items]
Revenues	57,745	65,362
Geographic Distribution, Foreign [Member]
Segment Information - Schedule of Revenue from External Customers by Geographic Areas (Details) [Line Items]
Revenues	$ 5,482	$ 4,449

- Definition

+ References

+ Details

Employee Benefit Plans (Details) - USD ($)	12 Months Ended
Employee Benefit Plans (Details) - USD ($)	Apr. 30, 2026	Apr. 30, 2025	Aug. 27, 2024	Apr. 30, 2023
Employee Benefit Plans (Details) [Line Items]
Stock Issued During Period, Value, Employee Benefit Plan	$ 1,286,000	$ 901,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in Shares)				86,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in Shares)		0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in Shares)		20,000
Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued (in Shares)		15,444
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture (in Shares)	0	1,550
Employee Benefits and Share-Based Compensation	$ 1,655,000	$ 1,399,000
Share-Based Payment Arrangement, Noncash Expense	1,974,000	1,161,000
Unrecognized stock compensation	7,700,000	4,200,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	1,500,000	918,000
Assets, Fair Value Disclosure	$ 7,300,000	$ 7,000,000
Common Stock [Member]
Employee Benefit Plans (Details) [Line Items]
Stock Issued During Period, Shares, Employee Benefit Plan (in Shares)	36,067	70,100
Stock Issued During Period, Value, Employee Benefit Plan	$ 36,000	$ 70,000
United States Post-Retirement Benefit Plan of US Entity, Defined Benefit [Member]
Employee Benefit Plans (Details) [Line Items]
Stock Issued During Period, Shares, Employee Benefit Plan (in Shares)	36,067	70,100
Stock Issued During Period, Value, Employee Benefit Plan	$ 1,300,000	$ 900,000
APIC, Share-Based Payment Arrangement, ESPP, Increase for Cost Recognition	$ 1,300,000	$ 800,000
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)	440,546	504,734
Income Incentive Pool [Member]
Employee Benefit Plans (Details) [Line Items]
Accrued Bonuses	$ 200,000	$ 1,800,000
Deferred Compensation Agreement [Member]
Employee Benefit Plans (Details) [Line Items]
Deferred Compensation Arrangement with Individual, Description	Under these agreements, each key employee receives specified retirement payments for the remainder of the employee’s life with a minimum payment of ten years’ benefits to either the employee or his or her beneficiaries. The agreements also provide for lump sum payments upon termination of employment without cause and reduced benefits upon early retirement.
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 374,000	504,000
UNITED STATES \| Fair Value, Inputs, Level 1 [Member]
Employee Benefit Plans (Details) [Line Items]
Assets, Fair Value Disclosure	4,000,000	3,500,000
UNITED STATES \| Fair Value, Inputs, Level 2 [Member]
Employee Benefit Plans (Details) [Line Items]
Assets, Fair Value Disclosure	$ 400,000	400,000
2025 Plan [Member]
Employee Benefit Plans (Details) [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)			700,000
Share-Based Payment Arrangement, Option [Member]
Employee Benefit Plans (Details) [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	4 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period	10 years
Employee Benefits and Share-Based Compensation	$ 699,000	$ 357,000
Stock Appreciation Rights (SARs) [Member]
Employee Benefit Plans (Details) [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period	5 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in Shares)		20,000
Stock Appreciation Rights (SARs) [Member] \| Common Stock [Member]
Employee Benefit Plans (Details) [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in Shares)		4,556
Stock Appreciation Rights (SARs) [Member] \| Employees and Directors [Member]
Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Total Grants from Inception, Gross (in Shares)		2,385,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in Shares)		0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in Shares)		0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in Shares)		0
Restricted Stock Units (RSUs) [Member]
Employee Benefit Plans (Details) [Line Items]
Share-Based Payment Arrangement, Noncash Expense	$ 1,200,000	$ 776,000
Performance Shares [Member]
Employee Benefit Plans (Details) [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	4 years

Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Revenues	$ 63,227	$ 69,811
Cost of revenues	44,831	39,714
Research and development expenses	5,994	6,076
Operating (loss) income	(3,001)	11,732
NEW YORK
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Revenues	45,651	53,269
CALIFORNIA
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Revenues	21,731	18,660
Frequency Electronics Inc New York [Member]
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Operating (loss) income	(5,442)	11,514
Frequency Electronics Inc Zyfer [Member]
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Operating (loss) income	3,813	743
Inter Segment [Member]
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Operating (loss) income	(673)	98
Corporate Segment [Member]
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Operating (loss) income	(699)	(623)
Operating Segments [Member]
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Revenues	(4,155)	(2,118)
Cost of revenues	(3,482)	(2,215)
Research and development expenses	5,994	6,076
Operating Segments [Member] \| NEW YORK
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Revenues	45,651	53,269
Cost of revenues	35,816	29,331
Research and development expenses	3,800	3,374
Operating Segments [Member] \| CALIFORNIA
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]
Revenues	21,731	18,660
Cost of revenues	12,497	12,598
Research and development expenses	$ 2,194	$ 2,702

Contingencies

12 Months Ended

Apr. 30, 2026

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

15. Contingencies

In the normal course of its business, the Company may be involved in various claims, negotiations and legal actions. As of April 30, 2026, the Company was not a party to any litigation in which an unfavorable outcome or material claim is probable or in which losses associated with the litigation can be reasonably estimated.