Document And Entity Information (USD $)	12 Months Ended
Document And Entity Information (USD $)	Apr. 30, 2014	Jul. 21, 2014	Oct. 31, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	FREQUENCY ELECTRONICS INC
Document Type	10-K
Current Fiscal Year End Date	--04-30
Entity Common Stock, Shares Outstanding		8,585,503
Entity Public Float			$ 60,700,000
Amendment Flag	false
Entity Central Index Key	0000039020
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Well-known Seasoned Issuer	No
Document Period End Date	Apr. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY

Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Current assets:
Cash and cash equivalents	$ 7,698	$ 3,460
Marketable securities	16,030	18,270
Accounts receivable, net of allowance for doubtful accounts of $234 in 2014 and $288 in 2013	7,741	7,781
Costs and estimated earnings in excess of billings, net	10,439	8,617
Inventories, net	41,227	37,521
Deferred income taxes	3,220	3,170
Prepaid income taxes	213	680
Prepaid expenses and other	1,294	1,517
Total current assets	87,862	81,016
Property, plant and equipment, at cost, net of accumulated depreciation and amortization	11,240	8,316
Deferred income taxes	6,650	6,320
Goodwill and other intangible assets	689	781
Cash surrender value of life insurance and cash held in trust	11,321	10,763
Other assets	1,699	1,713
Total assets	119,461	108,909
Current liabilities:
Short-term credit obligations	0	158
Accounts payable - trade	2,336	1,205
Accrued liabilities	7,361	7,964
Total current liabilities	9,697	9,327
Credit obligations- noncurrent	10,100	6,000
Deferred compensation	10,724	10,374
Deferred rent and other liabilities	594	756
Total liabilities	31,115	26,457
Commitments and contingencies
Stockholders' equity:
Preferred stock, $1.00 par value authorized 600 shares, no shares issued
Common stock, $1.00 par value; authorized 20,000 shares, 9,164 shares issued and 8,571 outstanding in 2014; 8,463 outstanding in 2013	9,164	9,164
Additional paid-in capital	53,181	51,913
Retained earnings	24,702	20,662
	87,047	81,739
Common stock reacquired and held in treasury - at cost (593 shares in 2014 and 701 shares in 2013)	(2,715)	(3,200)
Accumulated other comprehensive income	4,014	3,913
Total stockholders' equity	88,346	82,452
Total liabilities and stockholders' equity	$ 119,461	$ 108,909

Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Allowance for doubtful accounts (in Dollars)	$ 234	$ 288
Preferred stock, par value (in Dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized	600	600
Preferred stock, shares issued	0	0
Common stock, par value (in Dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized	20,000	20,000
Common stock shares issued	9,164	9,164
Common stock, shares outstanding	8,571	8,463
Treasury stock, shares	593	701

Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Revenues	$ 71,550	$ 68,932
Cost of revenues	46,800	43,822
Gross margin	24,750	25,110
Selling and administrative expenses	14,064	14,704
Research and development expenses	5,813	5,727
Operating profit	4,873	4,679
Other income (expense):
Investment income	880	671
Interest expense	(156)	(195)
Other income (expense), net	703	(69)
Income before provision for income taxes	6,300	5,086
Provision for income taxes	2,260	1,400
Net income	4,040	3,686
Net income per common share:
Basic (in Dollars per share)	$ 0.47	$ 0.44
Diluted (in Dollars per share)	$ 0.46	$ 0.43
Average shares outstanding:
Basic (in Shares)	8,526,576	8,412,633
Diluted (in Shares)	8,816,957	8,604,651
Statements of Comprehensive Income
Net Income	4,040	3,686
Other comprehensive income (loss):
Foreign currency translation adjustment	505	(782)
Change in market value of marketable securities	(659)	821
Deferred tax effect of change in marketable securities	255	(296)
Total other comprehensive income (loss)	101	(257)
Comprehensive income	$ 4,141	$ 3,429

Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Cash flows from operating activities:
Net income	$ 4,040	$ 3,686
Adjustments to reconcile net income to net cash provided in operating activities:
Deferred income tax benefit	(160)	(320)
Depreciation and amortization	2,471	2,413
Deferred lease obligation	120	(68)
Provision for losses on accounts receivable, inventories and warranty reserve	254	2,146
Gains on marketable securities	(367)	(47)
(Gain) loss on sale of fixed and other assets, net	(667)	45
Employee benefit plans expense	1,246	1,072
Stock-based compensation expense	1,105	947
Tax benefit from exercise of stock-based compensation	(182)	(152)
Changes in operating assets and liabilities:
Accounts receivable	(1,631)	465
Inventories	(3,102)	(6,017)
Prepaid expenses and other	423	(133)
Other assets	(703)	(614)
Accounts payable - trade	614	(502)
Accrued liabilities	(88)	895
Income taxes refundable/payable	688	(1,071)
Other liabilities	(419)	88
Net cash provided by operating activities	3,642	2,833
Cash flows from investing activities:
Purchase of marketable securities	(3,162)	(2,836)
Proceeds from sale or redemption of marketable securities	4,993	3,006
Proceeds from sale of fixed assets (a)	0	67
Capital expenditures	(5,405)	(2,250)
Net cash used in investing activities	(3,574)	(2,013)
Cash flows from financing activities:
Proceeds from credit line borrowing	4,100	5,000
Payment of short-term credit and lease obligations	(15)	(5,357)
Proceeds from exercise of stock options	0	20
Dividends paid	0	(1,684)
Tax benefit from exercise of stock-based compensation	182	152
Net cash provided by (used in) financing activities	4,267	(1,869)
Net increase (decrease) in cash and cash equivalents before effect of exchange rate changes	4,335	(1,049)
Effect of exchange rate changes on cash and cash equivalents	(97)	(273)
Net increase (decrease) in cash and cash equivalents	4,238	(1,322)
Cash and cash equivalents at beginning of year	3,460	4,782
Cash and cash equivalents at end of year	7,698	3,460
Cash paid during the year for:
Interest	153	186
Income taxes	$ 1,735	$ 2,993

Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Apr. 30, 2012	$ 9,164	$ 50,797	$ 18,660	$ (3,659)	$ 4,170	$ 79,132
Balance (in Shares) at Apr. 30, 2012	9,163,940			800,787
Contribution of stock to 401(k) plan		214		242		456
Contribution of stock to 401(k) plan (in Shares)				(52,715)
Stock-based compensation expense		947				947
Stock-based compensation expense (in Shares)				100
Tax benefit from stock option exercise		152				152
Exercise of stock options and stock appreciation rights - net of		(197)		217		20
Exercise of stock options and stock appreciation rights - net of (in Shares)				(47,582)		(113,075)
Cash dividend $0.20 per share			(1,684)			(1,684)
Change in unrealized gains and losses on marketable securities, net of taxes					525	525
Foreign currency translation adjustment					(782)	(782)
Net Income			3,686			3,686
Balance at Apr. 30, 2013	9,164	51,913	20,662	(3,200)	3,913	82,452
Balance (in Shares) at Apr. 30, 2013	9,163,940			700,590		8,463,000
Contribution of stock to 401(k) plan		277		189		466
Contribution of stock to 401(k) plan (in Shares)				(41,775)
Stock-based compensation expense		1,104		1		1,105
Stock-based compensation expense (in Shares)				(300)
Tax benefit from stock option exercise		182				182
Exercise of stock options and stock appreciation rights - net of		(295)		295
Exercise of stock options and stock appreciation rights - net of (in Shares)				(65,384)		(196,000)
Change in unrealized gains and losses on marketable securities, net of taxes					(404)	(404)
Foreign currency translation adjustment					505	505
Net Income			4,040			4,040
Balance at Apr. 30, 2014	$ 9,164	$ 53,181	$ 24,702	$ (2,715)	$ 4,014	$ 88,346
Balance (in Shares) at Apr. 30, 2014	9,163,940			593,131		8,571,000

Non-cash operating and investing activities:

12 Months Ended

Apr. 30, 2014

Supplemental Cash Flow Elements [Abstract]

Cash Flow, Supplemental Disclosures [Text Block]

Non-cash operating and investing activities:

(a)

During the year ended April 30, 2014, the Company delivered certain fixed assets called for by a license agreement with Morion, Inc. (See Note 10. Investment in Morion, Inc.) A portion of the $925 deposit previously received and recorded as deferred revenue at April 30, 2013, was recognized as proceeds on the sale of those fixed assets in fiscal year 2014. No additional cash was received for that provision of the license agreement.

1. Summary of Accounting Policies

12 Months Ended

Apr. 30, 2014

Accounting Policies [Abstract]

Significant Accounting Policies [Text Block]

1. Summary of Accounting Policies

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. 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. See Note 14 for information regarding the Company’s FEI-NY (which includes the subsidiaries FEI Government Systems, Inc., FEI Communications, Inc., Frequency Electronics, Inc. Asia (“FEI-Asia”) and FEI-Elcom Tech, Inc. (“FEI-Elcom”)), Gillam-FEI, and FEI-Zyfer business segments. Intercompany accounts and significant intercompany transactions are eliminated in consolidation. To accommodate the different fiscal periods of Gillam-FEI, the Company recognizes its share of net income or loss on a one month lag. Any material events which may occur during the intervening month at Gillam-FEI will be accounted for in the consolidated financial statements.

These 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 financial statements and related notes. Actual results could differ from these estimates.

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 be in excess of the FDIC insurance limit. No losses have been experienced on such investments.

Marketable Securities:

Marketable securities consist of investments in common stocks, including exchange-traded funds, corporate debt securities and debt securities of U.S. Government agencies. All marketable securities were held in the custody of financial institutions; four and five institutions at April 30, 2014 and 2013, respectively. Investments in debt and equity securities are categorized as available for sale and are carried at fair value, with unrealized gains and losses excluded from income and recorded directly to stockholders' equity. The Company recognizes gains or losses when securities are sold using the specific identification method.

Allowance for Doubtful Accounts:

Losses from uncollectible accounts receivable are provided for by utilizing the allowance for doubtful accounts method based upon management’s estimate of uncollectible accounts. Management analyzes accounts receivable and the potential for bad debts, customer concentrations, credit worthiness, current economic trends and changes in customer payment terms when evaluating the amount recorded for the allowance for doubtful accounts.

Inventories:

Inventories, which consist of finished goods, work-in-process, raw materials and components, are accounted for at the lower of cost (specific and average) or market.

Property, Plant and Equipment:

Property, plant and equipment are recorded at cost and include interest on funds borrowed to finance construction. Expenditures for renewals and betterments are capitalized; maintenance and repairs are charged to income 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 income.

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. To date, no impairment losses have been recognized.

Depreciation and Amortization:

Depreciation of fixed assets 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 other depreciable assets). Leasehold improvements and equipment acquired under capital leases are amortized on the straight-line method over the shorter of the term of the lease or the useful life of the related asset.

Amortization of identifiable intangible assets is based upon the expected lives of the assets and is recorded at a rate which approximates the Company’s utilization of the assets.

Intangible Assets:

Intangible assets consist of the ISO 9000 certification arising from the acquisition of FEI-Elcom in the assignment of fair value to its acquired assets including intangibles. The certification is valued at fair value and amortized over the estimated useful life of 3 years from the date of acquisition.

Goodwill:

The Company records goodwill as the excess of purchase price over the fair value of identifiable net assets acquired. Goodwill is tested for impairment on at least an annual basis at year end. When it is determined that the carrying value of goodwill may not be recoverable, the Company writes down the goodwill to an amount commensurate with the revised value of the acquired assets. The Company measures impairment based on revenue projections, recent transactions involving similar businesses and price/revenue multiples at which they were bought and sold, price/revenue multiples of competitors, and the present market value of publicly-traded companies in the Company’s industry.

Revenue and Cost Recognition:

Revenues under larger, long-term contracts, which generally require billings based on achievement of milestones rather than delivery of product, are reported in operating results using the percentage of completion method. For U.S. Government and other fixed-price contracts that require initial design and development of the product, revenue is recognized on the cost-to-cost method. Under this method, revenue is recorded based upon the ratio that incurred costs bear to total estimated contract costs with related cost of sales recorded as the costs are incurred. Costs and estimated earnings in excess of billings on uncompleted contracts, net of billings on uncompleted contracts in excess of costs and estimated earnings, are included in current assets.

On production-type orders, revenue is recorded as units are delivered with the related cost of sales recognized on each shipment based upon a percentage of estimated final program costs.

Changes in job performance on long-term and production-type orders may result in revisions to costs and revenue and are recognized in the period in which revisions are determined to be required. Provisions for anticipated losses are made in the period in which they become determinable.

For customer orders in the Company’s subsidiaries, and smaller contracts or orders in the other business segments, sales of products and services to customers are reported in operating results upon shipment of the product or performance of the services pursuant to terms of the customer order.

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

In accordance with industry practice, inventoried costs contain amounts relating to contracts and programs with long production cycles, a portion of which will not be realized within one year. Program costs for which production-level orders cannot be determined as probable are written down in the period in which that assessment is made.

Comprehensive Income:

Comprehensive income consists of net income and other comprehensive income. Other comprehensive income includes changes in unrealized gains or losses, net of tax, on securities available for sale during the year and the effects of foreign currency translation adjustments.

Research and Development expenses:

The Company engages in research and development 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. Research and development costs include direct labor, manufacturing overhead, direct materials and contracted services. Such costs are expensed as incurred.

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. An entity may only recognize or continue to recognize tax positions that meet a "more likely than not" threshold. When and if the Company were to recognize interest or penalties related to unrecognized tax benefits, it would be reported net of the federal tax benefit in the tax provision.

Earnings Per Share:

Basic earnings per share are computed by dividing net earnings by the weighted average number of shares of common stock outstanding. Diluted earnings per share are computed by dividing net earnings 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.

Fair Values of Financial Instruments:

Cash and cash equivalents and short-term credit obligations 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 company, Morion, Inc. (“Morion”). The Company is unable to reasonably estimate a fair value for this investment.

Foreign Operations and Foreign Currency Adjustments:

The Company maintains manufacturing operations in Belgium and the People’s Republic of China. The Company is vulnerable to currency risks in these countries. The local currency is the functional currency of each of the Company’s non-U.S. subsidiaries. No foreign currency gains or losses are recorded on intercompany transactions since they are affected at current rates of exchange. The results of operations of foreign subsidiaries, when translated into U.S. dollars, reflect the average rates of exchange for the periods presented. The balance sheets of foreign subsidiaries, except for equity accounts which are translated at historical rates, are translated into U.S. dollars at the rates of exchange in effect on the date of the balance sheet. As a result, similar results in local currency can vary upon translation into U.S. dollars if exchange rates fluctuate significantly from one period to the next.

Equity-based Compensation:

The Company values its share-based payment transactions using the Black-Scholes valuation model. Such value is recognized as expense on a straight-line basis over the service period of the awards, which is generally the vesting period, net of estimated forfeitures.

The weighted average fair value of each option or stock appreciation right has been estimated on the date of grant using the Black-Scholes option pricing model with the following range of weighted average assumptions used for grants:

	Years ended April 30
	2014			2013
Expected volatility		34	%		40	%
Dividend yield		0.0	%		0.0	%
Risk-free interest rate	2.45% to 2.50%			1.31% to 1.35%
Expected lives	8.5 years			8.5 years

The expected life assumption was determined based on the Company’s historical experience. The expected volatility assumption was based on the historical volatility of the Company’s common stock. The dividend yield assumption was determined based upon the Company’s past history of dividend payments and the Company’s current decision to suspend payment of dividends. On December 21, 2012, the Company’s Board of Directors declared a special cash dividend of $0.20 per share, payable on December 31, 2012 to shareholders of record on December 24, 2012. Due to the one-time nature of the special dividend it was not factored into the Black-Scholes fair value calculations. The risk-free interest rate assumption was determined using the implied yield currently available for zero-coupon U.S. Government issues with a remaining term equal to the expected life of the stock options.

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 accounts at several commercial banks at which the balances exceed Federal Deposit Insurance Corporation 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 United States. 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.

New Accounting Pronouncements:

In May 2014, the FASB issued Accounting Standard Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 eliminates most of the existing industry-specific revenue recognition guidance and significantly expands related disclosures. The required disclosures will include both quantitative and qualitative information about the amount, timing and uncertainty of revenue from contracts with customers and the significant judgments used. Entities can retrospectively apply ASU 2014-09 or use an alternative transition method. This ASU is effective for public companies for annual reporting periods beginning on or after December 15, 2016 and for the Company, must be adopted for its fiscal year 2018 beginning on May 1, 2017. The Company is in the process of determining the effect that ASU 2014-09 may have on its financial statements.

In February 2013, the FASB issued ASU No. 2013-02, Other Comprehensive Income. The amendments require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about those amounts. This ASU is effective for periods beginning after December 15, 2012 and the Company adopted ASU 2013-02 in fiscal year 2014 which began on May 1, 2013. Such adoption is reflected in the Company’s financial statements resulting in additional disclosures. (See Note 15.)

In July 2012, the FASB issued ASU No. 2012-02, Intangibles – Goodwill and Other (Topic 350): Test Indefinite-Lived Intangible Assets for Impairment. Under the requirements of ASU 2012-02 an entity has the option to assess qualitative factors when testing indefinite-lived intangible assets annually to determine whether it is more likely than not that the asset is not impaired. An entity also has the option to bypass the qualitative assessment for any indefinite-lived intangible asset in any period and proceed directly to performing the quantitative impairment test or resume performing the qualitative assessment in any subsequent period. If, after assessing the totality of events and circumstances, an entity concludes that it is more likely than not that the indefinite-lived intangible asset is impaired, then it is required to determine the fair value of the indefinite-lived intangible asset and perform the quantitative impairment test by comparing the fair value with the carrying amount in accordance with Subtopic 350-30. ASU 2012-02 is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. The Company adopted ASU 2012-02 for its fiscal year 2014 which began on May 1, 2013. The adoption of this ASU had no material impact on the Company’s financial statements.

- Definition

The entire disclosure for all significant accounting policies of the reporting entity.

+ References+ Details

2. Earnings Per Share

12 Months Ended

Apr. 30, 2014

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 are as follows:

	Years ended April 30,
	2014		2013
Basic EPS Shares outstanding (weighted average)		8,526,576		8,412,633
Effect of Dilutive Securities		290,381		192,018
Diluted EPS Shares outstanding		8,816,957		8,604,651

Dilutive securities consist of unexercised stock options and stock appreciation rights (“SARS”). The computation of diluted shares outstanding excludes those options and SARS with an exercise price in excess of the average market price of the Company’s common shares during the periods presented. The inclusion of such options and SARS in the computation of earnings per share would have been antidilutive. For the years ended April 30, 2014 and 2013, the number of excluded options and SARS were 270,875 and 939,375, respectively.

- Definition

The entire disclosure for earnings per share.

+ References+ Details

3. Costs and Estimated Earnings in Excess of Billings

12 Months Ended

Apr. 30, 2014

Contractors [Abstract]

Long-term Contracts or Programs Disclosure [Text Block]

3. Costs and Estimated Earnings in Excess of Billings

At April 30, 2014 and 2013, costs and estimated earnings in excess of billings, net, consist of the following:

	2014			2013
	(in thousands)
Costs and estimated earnings in excess of billings	$	11,965		$	10,228
Billings in excess of costs and estimated earnings		(1,526	)		(1,611	)
Net asset	$	10,439		$	8,617

Such amounts represent revenue recognized on long-term contracts that had not been billed at the balance sheet dates or represent a liability for amounts billed in excess of the revenue recognized. Amounts are billed to customers pursuant to contract terms. In general, the recorded amounts will be billed and collected or revenue recognized within twelve months of the balance sheet date. Revenue on these long-term contracts is accounted for on the percentage of completion basis. During the years ended April 30, 2014 and 2013, revenue recognized under percentage of completion contracts was approximately $43.2 million and $35.6 million, respectively.

- Definition

The entire disclosure for long-term contracts or programs.

+ References+ Details

4. Inventories

12 Months Ended

Apr. 30, 2014

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

4. Inventories

Inventories at April 30, 2014 and 2013, respectively, consisted of the following (in thousands):

	2014		2013
Raw Materials and Component Parts	$	24,986	$	21,066
Work in Progress		12,385		13,665
Finished Goods		3,856		2,790
	$	41,227	$	37,521

As of April 30, 2014 and 2013, approximately $33.4 million and $29.9 million, respectively, of total inventory is located in the United States, approximately $7.1 million and $6.9 million, respectively, is located in Belgium and approximately $0.7 million and $0.7 million, respectively, is located in China.

- Definition

The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.

+ References+ Details

5. Property, Plant and Equipment and Leases

12 Months Ended

Apr. 30, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure [Text Block]

5. Property, Plant and Equipment and Leases

Property, plant and equipment at April 30, 2014 and 2013, consists of the following (in thousands):

	2014		2013
Buildings and building improvements	$	5,976	$	5,477
Machinery, equipment and furniture		49,651		44,758
		55,627		50,235
Less, accumulated depreciation		44,387		41,919
	$	11,240	$	8,316

Depreciation and amortization expense for the years ended April 30, 2014 and 2013 was $2,309,000 and $2,250,000, respectively.

Maintenance and repairs charged to operations for the years ended April 30, 2014 and 2013 was approximately $940,000 and $993,000, respectively.

The Company leases its Long Island, New York headquarters building at an annual rent of $800,000 following the Company’s exercise of its option to renew the lease for a second 5-year period. The lease will end in January 2019. Under the terms of the lease, the Company is required to pay its proportionate share of real estate taxes, insurance and other charges.

In addition, the Company’s subsidiaries in New Jersey, China, France and California lease their office and manufacturing facilities. FEI-Elcom leases 32,000 square feet of office and manufacturing space at current monthly rental of approximately $28,000 in the last two years of the lease which expires in March 2016. The lease for the FEI-Asia facility is for a one-year term with monthly rent of $6,800 through February 2015. FEI-Zyfer leases office and manufacturing space encompassing 27,850 square feet. Monthly rental payments are currently $29,500 and increase each year over the remaining 40 months of the lease term. Satel-FEI, a wholly-owned subsidiary of Gillam-FEI, occupies office space under a 9-year lease, cancelable after three years, at an approximate rate of $1,100 per month.

Rent expense under operating leases was approximately $1.5 million and $1.3 million for the fiscal years ended April 30, 2014 and 2013. The Company records rent expense on its New York building and FEI-Zyfer facility on the straight-line method over the lives of the respective leases. As a result, as of April 30, 2014 and 2013, the Company’s balance sheet includes deferred rent payable of approximately $380,000 and $310,000, respectively, which will be recognized over the respective rental periods.

Future minimum lease payments required by the operating leases are as follows (in thousands):

Years ending April 30,	Operating Leases
2015	$	1,503
2016		1,473
2017		1,174
2018		925
2019		600
Total future minimum lease payments	$	5,675

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

+ References+ Details

6. Marketable Securities

12 Months Ended

Apr. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

6. Marketable Securities

The cost, gross unrealized gains, gross unrealized losses and fair market value of available-for-sale securities at April 30, 2014 and 2013 are as follows (in thousands):

	April 30, 2014
			Gross		Gross			Fair
			Unrealized		Unrealized			Market
	Cost		Gains		Losses			Value
Fixed income securities	$	8,927	$	116	$	(36	)	$	9,007
Equity securities		6,267		909		(153	)		7,023
	$	15,194	$	1,025	$	(189	)	$	16,030

	April 30, 2013
			Gross		Gross			Fair
			Unrealized		Unrealized			Market
	Cost		Gains		Losses			Value
Fixed income securities	$	10,285	$	297	$	0		$	10,582
Equity securities		6,490		1,266		(68	)		7,688
	$	16,775	$	1,563	$	(68	)	$	18,270

The following table presents the fair value and unrealized losses, aggregated by investment type and length of time that individual securities have been in a continuous unrealized loss position:

	Less than 12 months					12 Months or more					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		Losses			Value		Losses			Value		Losses
April 30, 2014
Fixed Income Securities	$	501	$	(3	)	$	448	$	(33	)	$	949	$	(36	)
Equity Securities		366		(1	)		925		(152	)		1,291		(153	)
	$	867	$	(4	)	$	1,373	$	(185	)	$	2,240	$	(189	)

April 30, 2013
Fixed Income Securities	$	-	$	-	$	-	$	-		$	-	$	-
Equity Securities		-		-		512		(68	)		512		(68	)
	$	-	$	-	$	512	$	(68	)	$	512	$	(68	)

The Company regularly reviews its investment portfolio to identify and evaluate investments that have indications of possible impairment. The Company does not believe that its investments in marketable securities with unrealized losses at April 30, 2014 are other-than-temporary due to market volatility of the security’s fair value, analysts’ expectations and the Company’s ability to hold the securities for a period of time sufficient to allow for any anticipated recoveries in market value.

Proceeds from the sale or redemption of available-for-sale securities and the resulting gross realized gains and losses included in the determination of net income (loss) are as follows (in thousands):

	For the years ended April 30,
	2014		2013
Proceeds	$	4,993	$	3,006
Gross realized gains	$	367	$	47
Gross realized losses	$	-	$	-

Maturities of fixed income securities classified as available-for-sale at April 30, 2014 are as follows (at cost, in thousands):

Current	$	4,014
Due after one year through five years		3,086
Due after five years through ten years		1,827
	$	8,927

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 three 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 in active markets that the Company has the ability to access.

Level 2

Inputs to the valuation methodology include:

- Quoted prices for similar assets or liabilities in active markets;

- Quoted prices for identical or similar assets or liabilities in inactive markets

- Inputs other than quoted prices that are observable for the asset or liability;

- 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. All of the Company’s investments in marketable securities are Level 1 assets.

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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-Section 50

-Paragraph 6

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Glossary Debt Security

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-URI http://asc.fasb.org/extlink&oid=6511694

+ Details

7. Debt Obligations

12 Months Ended

Apr. 30, 2014

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

7.	Debt Obligations

On June 6, 2013, the Company obtained a credit facility (the “Facility”) from JPMorgan Chase Bank, N.A. (“JPMorgan”) pursuant to a credit agreement (the “Credit Agreement”) between the Company and JPMorgan. The maximum aggregate amount of the Facility is $25.0 million, of which the Company immediately borrowed $7.2 million, using the proceeds to repay the outstanding balance under the $9.3 million line of credit with another financial institution which formerly managed a substantial portion of the Company’s investment portfolio. As a result of this refinancing of short-term credit with a long-term obligation, as of April 30, 2013, the Company reclassified the $6.0 million balance payable under the replaced line of credit to long-term debt. Proceeds from the Facility will be used for working capital and to finance acquisitions. During the year ended April 30, 2014, the Company borrowed an additional $4.1 million under the Facility, primarily to finance the acquisition of additional manufacturing equipment.

The Company may make borrowings under the Facility, from either Tranche A or Tranche B or a combination of both, not to exceed $25.0 million. Pursuant to the Credit Agreement, the amount of Tranche A borrowings may not exceed the value of the Pledged Investments (as defined in the Credit Agreement). The amount of Tranche B borrowings may not exceed the lesser of (i) $15.0 million and (ii) the Borrowing Base (as defined in the Credit Agreement). Current outstanding borrowings under the Facility are all under Tranche A. The Facility is fully guaranteed by certain of the Company’s subsidiaries and is secured by, among other things, a pledge of substantially all personal property of the Company and certain of the Company’s subsidiaries.

Borrowings under the Facility are evidenced by a line of credit note (the “Note”) and bear interest, payable monthly, at a rate equal to the LIBOR Rate, as determined from time to time by JPMorgan pursuant to the terms of the Note, plus a margin of 0.75% for Tranche A borrowings and 1.75% for Tranche B borrowings. The principal balance on the Note, along with any accrued and unpaid interest, is due and payable no later than June 5, 2018, which is the maturity date of the Facility. In addition, the Company is required to pay JPMorgan fees equal to 0.1% per annum on any unused portion of the Facility.

The Credit Agreement contains a number of affirmative and negative covenants, including limitations on the incurrence of additional debt, liens on property, acquisitions, loans and guarantees, mergers, consolidations, liquidations and dissolutions, asset sales, and distributions and other payments in respect of the Company’s capital stock. The Credit Agreement also contains certain events of default customary for credit facilities of this type, including nonpayment of principal or interest when due, material incorrectness of representations and warranties when made, breach of covenants, bankruptcy and insolvency, unstayed material judgment beyond specified periods, and acceleration or payment default of other material indebtedness. The Credit Agreement requires the Company to maintain, as of the end of each fiscal quarter, a funded debt to EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization) ratio and, if there are any borrowings under Tranche B, an interest charge coverage ratio. The calculation of both ratios is defined in the Credit Agreement. For the year ended April 30, 2014, the Company met the required covenants for its borrowings under Tranche A.

Under the Company’s subsequently replaced $9.3 million line of credit, noted above, during the fiscal year ended April 30, 2013, the Company borrowed $5.0 million and repaid the same amount. The highest borrowings under this line of credit during fiscal year 2013 was $8.5 million. The line was secured by the investments and had no maturity date so long as the Company maintained its investments with the financial institution. During fiscal year 2013, advances against the line of credit bore interest at variable interest rates between 1.70% and 1.80%.

The Company’s European subsidiaries have available 250,000 Euros (approximately $350,000 based on current rates of exchange between the dollar and the Euro) in a bank credit line to meet short-term cash flow requirements. As of April 30, 2014 and 2013, no amounts were outstanding under such line of credit. Borrowings under the bank credit line, if any, must be repaid within one year of receipt of funds. Interest on this credit line is at 1.0% over the EURO Interbank Offered rate (EURIBOR). At April 30, 2014 and 2013, the rate was 1.235% and 1.117%, respectively, based on the one-month EURIBOR.

- 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+ Details

10. Investment in Morion, Inc.	12 Months Ended
10. Investment in Morion, Inc.	Apr. 30, 2014
Investment Holdings [Abstract]
Investment Holdings [Text Block]	10. Investment in Morion, Inc. The Company has an investment in Morion, Inc., a privately-held Russian company, which manufactures high precision quartz resonators and crystal oscillators. The Company’s investment consists of 4.6% of Morion’s outstanding shares, accordingly, the Company accounts for its investment in Morion on the cost basis. This investment is included in other assets in the accompanying balance sheets. During the fiscal years ended April 30, 2014 and 2013, the Company acquired product from Morion in the aggregate amount of approximately $213,000 and $54,000, respectively, and the Company sold product to Morion in the aggregate amount of approximately $1,044,000 and $355,000, respectively. At April 30, 2014, accounts receivable included $276,000 due from Morion and $34,000 was payable to Morion. On October 22, 2012, the Company entered into an agreement with respect to its licensing of rubidium oscillator production technology to Morion. The agreement requires the Company to supply production equipment and parts and to provide training to Morion employees to enable Morion to achieve certain levels of volume production of rubidium oscillators. Morion will pay the Company approximately $2.7 million for the license, the equipment, parts and training, plus 5% royalties on third party sales. For a 5-year period following an initial production run, the Company commits to purchase from Morion a minimum of approximately $400,000 worth of rubidium oscillators per year although Morion is not obligated to sell that amount to the Company. In November 2012, Morion paid the Company a $925,000 deposit under the agreement which amount had been recorded on the Company’s balance sheet as deferred revenue. In October 2013, after amending the original document to clarify certain billing events, the Company invoiced Morion for the equipment, certain component parts for the production of rubidium oscillators, training of certain Morion employees and transfer of the production technology and license to Morion. Accordingly, during the year ended April 30, 2014, the Company recorded revenues of $500,000 for the technology transfer, training and sale of parts and recognized a gain of approximately $736,000 upon the sale of fully-depreciated equipment. The $925,000 deposit previously recorded as deferred revenue is included in these revenues and gain. Additional revenues under the agreement will be recorded after the Company provides further on-site training for Morion personnel, delivers more component parts and obtains relief from certain U.S. Government limitations relating to the sales of items to be manufactured under the license. The United States Department of State has approved the technology transfer called for under the agreement.

- Definition

The entire disclosure for investment holdings. This includes the long positions of investments for the entity. It contains investments in affiliated and unaffiliated issuers. The investments include securities and non securities (i.e. commodities and futures contracts).

+ References+ Details

11. Goodwill and Other Intangible Assets	12 Months Ended
11. Goodwill and Other Intangible Assets	Apr. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Text Block]	11. Goodwill and Other Intangible Assets During fiscal year 2004, the Company acquired FEI-Zyfer, Inc. (“FEI-Zyfer”). This acquisition resulted in the recording of $218,000 in goodwill. In February 2012, the Company acquired FEI-Elcom resulting in the recording of goodwill in the amount of $398,000 plus other intangible assets with a value of $275,000. Management has determined that goodwill is not impaired as of April 30, 2014 and 2013. The other intangible asset will be amortized over a three-year period from the date of acquisition. Amortization expense for the years ended April 30, 2014 and 2013 was approximately $91,000 each year.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References+ Details

12. Employee Benefit Plans

12 Months Ended

Apr. 30, 2014

Disclosure Text Block Supplement [Abstract]

Compensation and Employee Benefit Plans [Text Block]

12. Employee Benefit Plans

Profit Sharing Plan:

The Company provides its U.S.-based employees with a profit sharing plan and trust under section 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 years ended April 30, 2014 and 2013, the Company contributed 41,775 and 52,715 shares of common stock, respectively. The approximate value of these shares at the date of contribution was $466,000 in fiscal year 2014 and $456,000 in fiscal year 2013. Contributed shares are drawn from the Company’s common stock held in treasury and are removed at the Company’s original cost of acquisition of such shares on a specific identification basis. In addition to changes in the treasury stock accounts, during fiscal years 2014 and 2013, such transactions increased additional paid in capital by $277,000 and $214,000, respectively. As of April 30, 2014, the profit sharing plan holds an aggregate of 464,652 shares of the Company’s common stock allocated to the accounts of the individual participants.

Income Incentive Pool:

The Company maintains incentive bonus programs for certain employees which 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, which formula is based on consolidated pre-tax profits. The Company charged approximately $1.3 million and $1.6 million to selling and administrative expenses under these plans for the fiscal years ended April 30, 2014 and 2013, respectively.

Employee Stock Plans:

The Company has various stock plans, some of which have been approved by the Company’s stockholders, for key management employees, including officers and directors who are employees, certain consultants and independent members of the Board of Directors. The plans are Nonqualified Stock Options (“NQSO”) plans, Incentive Stock Option ("ISO”) plans and Stock Appreciation Rights (“SARS”). Under these plans, options or SARS are granted at the discretion of the Stock Option Committee 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 expire ten years after the date of grant and are subject to certain restrictions on transferability of the shares obtained on exercise. As of April 30, 2012, a consultant, who is the son of the Company’s president, had been granted options to purchase 56,625 shares of Company stock under NQSO plans at a weighted average exercise price of $5.60. During the years ended April 30, 2014 and 2013, the consultant elected cashless exercises of 17,500 shares at an exercise price of $6.67 (resulting in a net issuance of 7,276 shares) and 19,125 shares at an exercise price of $3.50 per share (resulting in a net issuance of 11,011 shares), respectively. The remaining 20,000 options are outstanding and exercisable at an exercise price of $6.67. The options expire one year after the termination of the consulting agreement which has no expiration date. As of April 30, 2014, eligible employees had been granted options to purchase approximately 172,500 shares of Company stock under ISO plans, of which approximately 95,000 options with a weighted average exercise price of $13.15 are both outstanding and exercisable. The Company provides option holders the opportunity to exercise stock options either by paying the exercise price for the shares or to do a cashless exercise whereby the individual receives the net number of shares of stock equal in value to the exercised number of shares times the difference between the current market value of the Company’s stock and the exercise price. During the year ended April 30, 2014, employees exercised ISOs for 77,500 shares of Company stock choosing to do so in cashless exercises. Such cashless exercises of stock options under ISO and NQSO plans, including the consultant shares above, aggregated 95,000 shares. Accordingly, the Company issued 14,828 shares on exercise and returned 80,172 shares to the pool of available shares which may be used for future grants. As of April 30, 2014, eligible employees and directors have been granted SARS based on approximately 1,711,000 shares of Company stock, of which approximately 1,608,000 shares are outstanding and approximately 1,028,000 shares with a weighted average exercise price of $8.01 are exercisable. When the SARS become exercisable, the Company will settle the SARS by issuing to exercising recipients the number of shares of stock 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 Company’s stock plan. During the year ended April 30, 2014, employees exercised SARS representing 101,000 shares of Company stock and received 50,556 shares of Company stock. The 50,444 share difference was returned to the pool of available shares and may be used for future grants.

The excess of the consideration received over the par value of the common stock or cost of treasury stock issued under both types of option plans is recognized as an increase in additional paid-in capital.

The following table summarizes information about stock option activity for the years ended April 30:

	Stock Options and Stock Appreciation Rights
	Shares			Weighted- Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding – April 30, 2012		1,629,700		$	7.95	6.4 years
Granted		209,000			8.82
Exercised		(113,075	)		5.63
Expired or Canceled		(17,000	)		5.16
Outstanding – April 30, 2013		1,708,625		$	8.23	6.1 years
Granted		212,000			10.30
Exercised		(196,000	)		7.16
Expired or Canceled		(2,000	)		10.06
Outstanding – April 30, 2014		1,722,625		$	8.60	6.0 years	$3,913,368
Exercisable		1,142,750		$	8.42	4.8 years	$2,964,498
Available for future grants		6,816

As of April 30, 2014, total unrecognized compensation cost related to nonvested options and stock appreciation rights under the plans was approximately $2,016,000. These costs are expected to be recognized over a weighted average period of 2.5 years.

During the years ended April 30, 2014 and 2013, 268,875 and 254,813 shares, respectively, vested, the fair value of which was approximately $993,000 and $847,000, respectively. The weighted average grant date fair value of stock appreciation rights granted during the years ended April 30, 2014 and 2013, were approximately $4.57 and $4.16, respectively.

Stock-based compensation costs capitalized as part of work in process inventory or included in the cost of sales of programs on which the Company recognizes revenue under the percentage of completion method were approximately $426,000 and $410,000 for the years ended April 30, 2014 and 2013, respectively. Selling and administrative expenses include stock-based compensation expense of approximately $676,000 and $537,000 for the years ended April 30, 2014 and 2013, 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 financing cash flows. For the years ended April 30, 2014 and 2013, the Company realized $182,000 and $152,000 respectively, of tax benefits from the exercise of stock options and SARS.

Independent Contractor Stock Option Plan:

The Company had an Independent Contractor Stock Option Plan under which up to 350,000 shares could be granted. This plan was terminated in fiscal year 2006. An Independent Contractor Stock Option Committee determined to whom options may be granted from among eligible participants, the timing and duration of option grants, the option price, and the number of shares of common stock subject to each option. Options were granted to certain independent contractors at a price equal to the then fair market value of the Company’s common stock. The options were exercisable over specified periods per terms of the individual agreements. No compensation expense was recorded during the years ended April 30, 2014 and 2013 as no other grants were made in those years and previous grants have been fully expensed. As a result of the adoption by the stockholders of the 2005 Stock Award Plan, the Independent Contractor Stock Option Plan was discontinued. No additional grants will be made under this plan and the outstanding grant will expire in fiscal year 2015.

At April 30, 2014 and 2013, options for 30,000 shares, at a weighted average exercise price of $14.76, were issued and outstanding under this plan. No other activities occurred during the two year period ended April 30, 2014.

Restricted Stock Plan:

During fiscal year 1990, the Company adopted a Restricted Stock Plan which provided that key management employees could be granted rights to purchase an aggregate of 375,000 shares of the Company's common stock. The grants, transferability restrictions and purchase price were determined at the discretion of a special committee of the board of directors. The purchase price could not be less than the par value of the common stock. Transferability of shares is restricted for a four-year period, except in the event of a change in control as defined. As a result of the adoption by the Company’s stockholders of the 2005 Stock Award Plan, the Restricted Stock Plan was discontinued. No additional grants will be made under this plan. As of April 30, 2014 and 2013, grants for 7,500 shares are available to be purchased at a price of $4.00 per share.

Employee Stock Ownership Plan/Stock Bonus Plan:

During 1990, the Company amended its Stock Bonus Plan to become an Employee Stock Ownership Plan (“ESOP”). By means of a bank note, subsequently repaid, the Company reacquired 561,652 shares of its common stock during fiscal year 1990. These shares plus approximately 510,000 additional shares issued by the Company from its authorized, unissued shares were sold to the ESOP in May 1990. Shares were released for allocation to participants based on a formula as specified in the ESOP document. By the end of fiscal year 2000, all shares (1,071,652) had been allocated to participant accounts of which 402,378 shares remain in the ESOP.

Deferred Compensation Agreements:

The Company has a series of agreements with key employees providing for the payment of benefits upon retirement or death. 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 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 years ended April 30, 2014 and 2013 was approximately $780,000 and $616,000, respectively.

Life Insurance Policies and Cash 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.

13. Income Taxes

12 Months Ended

Apr. 30, 2014

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

13. Income Taxes

The income before provision for income taxes consisted of (in thousands):

	Year Ended April 30,
	2014			2013
U.S.	$	7,565		$	7,028
Foreign		(1,265	)		(1,942	)
	$	6,300		$	5,086

The provision for income taxes consists of the following (in thousands):

	2014			2013
Current:
Federal	$	2,190		$	1,680
Foreign		-			-
State		230			40
Current provision		2,420			1,720
Deferred:
Federal		(280	)		(145	)
Foreign		(103	)		(585	)
State		120			(80	)
Deferred benefit		(263	)		(810	)
Change in valuation allowance		103			490
Total provision	$	2,260		$	1,400

The following table reconciles the reported income tax expense with the amount computed using the federal statutory income tax rate (in thousands):

	2014			2013
Computed "expected" tax expense	$	2,142		$	1,729
State and local tax, net of federal benefit		214			(81	)
Valuation allowance on deferred tax assets		103			490
Foreign losses without tax benefit		222			29
Nondeductible expenses		199			178
Nontaxable life insurance cash value increase		(151	)		(168	)
Tax credits		(203	)		(299	)
Other items, net, none of which individually exceeds 5% of federal taxes at statutory rates		(266	)		(478	)
	$	2,260		$	1,400

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

	2014			2013
Deferred tax assets:
Employee benefits	$	6,860		$	6,490
Inventory		1,750			1,980
Accounts receivable		570			470
Tax credits		770			990
Other liabilities		240			270
Net operating loss carryforwards		3,130			3,040
Total deferred tax asset		13,320			13,240
Deferred tax liabilities:
Marketable securities		280			540
Property, plant and equipment		1,050			1,310
Net deferred tax asset		11,990			11,390
Valuation allowance		(2,120	)		(1,900	)
Net deferred tax assets	$	9,870		$	9,490

Net deferred tax assets are comprised of the following (in thousands):

	2014			2013
Gross current assets	$	3,600		$	3,890
Valuation allowance		-			-
Current liabilities		(380	)		(720	)
Net current deferred tax assets		3,220			3,170

Gross noncurrent assets		9,940			9,600
Valuation allowance		(2,120	)		(1,900	)
Noncurrent liabilities		(1,170	)		(1,380	)
Net noncurrent deferred tax assets		6,650			6,320
Net deferred tax assets	$	9,870		$	9,490

The total valuation allowance relates to deferred tax assets of both domestic and foreign subsidiaries. The change in valuation allowance during the year ended April 30, 2014 was an increase of $220,000, including a foreign exchange adjustment of $117,000. For the year ended April 30, 2013, the change in valuation allowance was an increase of $445,000 which consists of the $490,000 deferred tax provision less a foreign exchange adjustment of $45,000.

At April 30, 2014, the Company has available approximately $3.6 million in net operating losses available to offset future income of certain of its foreign subsidiaries. These loss carryforwards have no expiration date. As a result of the acquisition of FEI-Elcom, the Company has a federal net operating loss carryforward of $5.6 million which may be applied in annually limited amounts to offset future U.S.-sourced taxable income over the next 18 years.

The Company has evaluated its tax positions and has concluded that the tax positions meet the more-likely-than-not recognition threshold as specified under accounting standards. It is difficult to predict what would occur to change the Company’s unrecognized tax benefits over the next twelve months. The Company believes, however, that there should be no change during the next twelve months. The Company's tax returns for April 30, 2006 and 2007 have been examined by the Internal Revenue Service, which resulted in no material adjustments. The Company's tax years from April 30, 2011 through April 30, 2014 remain open to examination by state tax authorities and by the Internal Revenue Service.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References+ Details

14. Segment Information

12 Months Ended

Apr. 30, 2014

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

14. Segment Information

The Company operates under three 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.

(2)	Gillam-FEI - operates out of Belgium and France and primarily sells wireline synchronization and network management systems in non-U.S. markets. All sales from Gillam-FEI to the United States are to other segments of the Company.

(3)

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 United States market.

The FEI-NY segment also includes the operations of the Company’s wholly-owned subsidiaries, FEI-Elcom and FEI-Asia. FEI-Asia functions as a manufacturing facility for the FEI-NY segment with minimal sales to outside customers. FEI-Elcom, in addition to its own product line, provides design and technical support for the FEI-NY segment’s satellite business.

The Company’s Chief Executive Officer measures segment performance based on total revenues and profits generated by each geographic location 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 three segments are the same as those described in the “Summary of Significant Accounting Policies.” The Company evaluates the performance of its segments and allocates resources to them based on operating profit which is defined as income before investment income, interest expense and taxes. The European-based director of Gillam-FEI and the president of FEI-Zyfer manage the assets of these segments. All acquired assets, including intangible assets, are included in the assets of these two segments.

The table below presents information about reported segments for each of the years ended April 30 with reconciliation of segment amounts to consolidated amounts as reported in the statement of operations or the balance sheet for each of the years (in thousands):

	2014			2013
Net revenues:
FEI-NY	$	55,772		$	52,567
Gillam-FEI		9,995	**		11,825	**
FEI-Zyfer		7,990			10,523
less intersegment revenues		(2,207	)**		(5,983	)**
Consolidated revenues	$	71,550		$	68,932
Operating profit (loss):
FEI-NY	$	6,403		$	7,334
Gillam-FEI		(520	)**		(1,643	)**
FEI-Zyfer		(626	)		(552	)
Corporate		(384	)		(460	)
Consolidated operating profit	$	4,873		$	4,679

**For fiscal years ended April 30, 2014 and 2013, includes Gillam-FEI intersegment sales of $1.6 million and $4.1 million, respectively, to the FEI-NY and FEI-Zyfer segments. Such sales consist principally of design and development of automatic test equipment for satellite hardware production and manufacture of assemblies and units of a wireline synchronization product for ultimate production and sale in the U.S. In the Gillam-FEI segment, these transactions reduced the operating loss in each of the fiscal years. In addition, during the fourth quarter of fiscal year 2013, Gillam-FEI wrote down $1.4 million of accumulated costs related to hardware and software design of a product in connection with the French government’s smart electrical grid initiative. Based on slower than anticipated rollout of this project, the Company has less visibility regarding the probable schedule for obtaining production-level orders, which are now anticipated to occur no earlier than fiscal year 2015.

	2014			2013
Identifiable assets:
FEI-NY (approximately $3 million in China)	$	62,969		$	55,508
Gillam-FEI (all in Belgium or France)		19,595			18,071
FEI-Zyfer		11,220			10,418
less intersegment receivables		(19,819	)		(18,903	)
Corporate		45,496			43,815
Consolidated identifiable assets	$	119,461		$	108,909
Depreciation and amortization (allocated):
FEI-NY	$	2,021		$	1,892
Gillam-FEI		261			304
FEI-Zyfer		174			202
Corporate		15			15
Consolidated depreciation and amortization expense	$	2,471		$	2,413

Major Customers

The Company's products are sold to both commercial and governmental customers. For the years ended April 30, 2014 and 2013, approximately 54% and 62% respectively, of the Company's sales were made under contracts to the U.S. Government or subcontracts for U.S. Government end-use.

In fiscal year 2014, sales to two customers of the FEI-NY segment aggregated $29.4 million or 53% of that segment’s total sales. Each of these customers also exceeded 10% of the Company’s consolidated revenues. During the year ended April 30, 2014, in the Gillam-FEI segment, sales to one customer exceeded 10% of that segment’s revenues. In the FEI-Zyfer segment, one customer accounted for more than 10% of that segment’s sales. None of the customers in the Gillam-FEI and FEI-Zyfer segments accounted for more than 10% of consolidated revenues.

In fiscal year 2013, sales to three customers of the FEI-NY segment aggregated $34.1 million or 65% of that segment’s total sales. Each of these customers also exceeded 10% of the Company’s consolidated revenues. During the year ended April 30, 2013, in the Gillam-FEI segment, sales to one customer exceeded 10% of that segment’s revenues. In the FEI-Zyfer segment, two customers accounted for more than 10% of that segment’s sales. None of the customers in the Gillam-FEI and FEI-Zyfer segments accounted for more than 10% of consolidated revenues.

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 to be mutually satisfactory. Sales to major customers above can include commercial and governmental end users.

Foreign Sales

Revenues in each of the Company’s segments include sales to foreign governments or to companies located in foreign countries. Revenues, based on the location of the procurement entity and excluding intersegment sales, were derived from the following countries:

	(in thousands)
	2014		2013
France	$	8,932	$	9,527
Belgium		5,719		4,240
Russia		1,046		355
China		492		565
Other		2,488		3,035
	$	18,677	$	17,722

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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-Name Accounting Standards Codification

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+ Details

15. Other Comprehensive Income (Loss)

12 Months Ended

Apr. 30, 2014

Equity [Abstract]

Other Comprehensive Income, Noncontrolling Interest [Text Block]

15. Other Comprehensive Income (Loss)

In fiscal year 2014, the Company adopted guidance issued by the FASB that requires additional disclosure related to the impact of reclassification adjustments out of Accumulated Other Comprehensive Income (“AOCI”) on net income. Changes in AOCI by component and reclassifications out of AOCI are as follows (in thousands):

	Change in						Foreign
	Market Value						Currency
	of Marketable						Translation
	Securities						Adjustment			Total
Balance April 30, 2012, net of taxes				$	895		$	3,275		$	4,170
Items of other comprehensive income (loss) before reclassification, pretax					868			(782	)		86
Tax effect					(313	)		-			(313	)
Items of other comprehensive income (loss)before reclassification, net of taxes					555			(782	)		(227	)
Reclassification adjustments, pretax **		(47	)
Tax effect		17			(30	)		-			(30	)
Total other comprehensive income (loss), net of taxes					525			(782	)		(257	)
Balance April 30, 2013					1,420			2,493			3,913
Items of other comprehensive income (loss) before reclassification, pretax					(292	)		505			213
Tax effect					130			-			130
Items of other comprehensive income (loss) before reclassification, net of taxes					(162	)		505			343
Reclassification adjustments, pretax **		(367	)
Tax		125			(242	)		-			(242	)
Total other comprehensive income (loss), net of taxes					(404	)		505			101
Balance April 30, 2014				$	1,016		$	2,998		$	4,014

**The reclassification adjustments represent net realized gains on the sale or redemption of available-for-sale marketable securities that were reclassified from AOCI to Other income (expense), net.

Accounting Policies, by Policy (Policies)

12 Months Ended

Apr. 30, 2014

Accounting Policies [Abstract]

Consolidation, Policy [Policy Text Block]

Principles of Consolidation:

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash Equivalents:

Marketable Securities, Policy [Policy Text Block]

Marketable Securities:

Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]

Allowance for Doubtful Accounts:

Inventory, Policy [Policy Text Block]

Inventories:

Inventories, which consist of finished goods, work-in-process, raw materials and components, are accounted for at the lower of cost (specific and average) or market.

Property, Plant and Equipment, Policy [Policy Text Block]

Property, Plant and Equipment:

Depreciation, Depletion, and Amortization [Policy Text Block]

Depreciation and Amortization:

Amortization of identifiable intangible assets is based upon the expected lives of the assets and is recorded at a rate which approximates the Company’s utilization of the assets.

Intangible Assets, Finite-Lived, Policy [Policy Text Block]

Intangible Assets:

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

Goodwill:

Revenue Recognition, Policy [Policy Text Block]

Revenue and Cost Recognition:

On production-type orders, revenue is recorded as units are delivered with the related cost of sales recognized on each shipment based upon a percentage of estimated final program costs.

Comprehensive Income, Policy [Policy Text Block]

Comprehensive Income:

Research and Development Expense, Policy [Policy Text Block]

Research and Development expenses:

Income Tax, Policy [Policy Text Block]

Income Taxes:

Earnings Per Share, Policy [Policy Text Block]

Earnings Per Share:

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

Fair Values of Financial Instruments:

Foreign Currency Transactions and Translations Policy [Policy Text Block]

Foreign Operations and Foreign Currency Adjustments:

Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]

Equity-based Compensation:

	Years ended April 30
	2014			2013
Expected volatility		34	%		40	%
Dividend yield		0.0	%		0.0	%
Risk-free interest rate	2.45% to 2.50%			1.31% to 1.35%
Expected lives	8.5 years			8.5 years

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

Concentration of Credit Risk

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements:

5. Property, Plant and Equipment and Leases (Tables)

12 Months Ended

Apr. 30, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

Property, plant and equipment at April 30, 2014 and 2013, consists of the following (in thousands):

	2014		2013
Buildings and building improvements	$	5,976	$	5,477
Machinery, equipment and furniture		49,651		44,758
		55,627		50,235
Less, accumulated depreciation		44,387		41,919
	$	11,240	$	8,316

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future minimum lease payments required by the operating leases are as follows (in thousands):

Years ending April 30,	Operating Leases
2015	$	1,503
2016		1,473
2017		1,174
2018		925
2019		600
Total future minimum lease payments	$	5,675

6. Marketable Securities (Tables)

12 Months Ended

Apr. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

The cost, gross unrealized gains, gross unrealized losses and fair market value of available-for-sale securities at April 30, 2014 and 2013 are as follows (in thousands):

	April 30, 2014
			Gross		Gross			Fair
			Unrealized		Unrealized			Market
	Cost		Gains		Losses			Value
Fixed income securities	$	8,927	$	116	$	(36	)	$	9,007
Equity securities		6,267		909		(153	)		7,023
	$	15,194	$	1,025	$	(189	)	$	16,030

	April 30, 2013
			Gross		Gross			Fair
			Unrealized		Unrealized			Market
	Cost		Gains		Losses			Value
Fixed income securities	$	10,285	$	297	$	0		$	10,582
Equity securities		6,490		1,266		(68	)		7,688
	$	16,775	$	1,563	$	(68	)	$	18,270

Unrealized Gain (Loss) on Investments [Table Text Block]

The following table presents the fair value and unrealized losses, aggregated by investment type and length of time that individual securities have been in a continuous unrealized loss position:

	Less than 12 months					12 Months or more					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		Losses			Value		Losses			Value		Losses
April 30, 2014
Fixed Income Securities	$	501	$	(3	)	$	448	$	(33	)	$	949	$	(36	)
Equity Securities		366		(1	)		925		(152	)		1,291		(153	)
	$	867	$	(4	)	$	1,373	$	(185	)	$	2,240	$	(189	)

April 30, 2013
Fixed Income Securities	$	-	$	-	$	-	$	-		$	-	$	-
Equity Securities		-		-		512		(68	)		512		(68	)
	$	-	$	-	$	512	$	(68	)	$	512	$	(68	)

Gain (Loss) on Investments [Table Text Block]

	For the years ended April 30,
	2014		2013
Proceeds	$	4,993	$	3,006
Gross realized gains	$	367	$	47
Gross realized losses	$	-	$	-

Fair Value, by Balance Sheet Grouping [Table Text Block]

Maturities of fixed income securities classified as available-for-sale at April 30, 2014 are as follows (at cost, in thousands):

Current	$	4,014
Due after one year through five years		3,086
Due after five years through ten years		1,827
	$	8,927

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References+ Details

- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

+ References+ Details

- Definition

Tabular disclosure of the realized and unrealized gains and losses reported in the statement of income which have resulted from the sale and holding of marketable securities, respectively, as well as the sale or disposal of cost method investments. Such amounts would include realized gains and losses on the sale or disposal of trading, available-for-sale, and held-to-maturity securities, unrealized gains and losses on trading securities, unrealized gains and losses on available-for-sale and held-to-maturity securities transferred to the trading securities category, realized gains and losses on the sale or disposal of cost method investments, and losses recognized for other than temporary impairments (OTTI) of such investments.

+ References+ Details

9. Product Warranties (Tables)

12 Months Ended

Apr. 30, 2014

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

Changes in the carrying amount of accrued product warranty costs are as follows (in thousands):

	Year Ended April 30,
	2014			2013
Balance at beginning of year	$	598		$	778
Warranty costs incurred		(339	)		(324	)
Product warranty accrual		358			144
Balance at end of year	$	617		$	598

12. Employee Benefit Plans (Tables)

12 Months Ended

Apr. 30, 2014

Disclosure Text Block Supplement [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes information about stock option activity for the years ended April 30:

	Stock Options and Stock Appreciation Rights
	Shares			Weighted- Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding – April 30, 2012		1,629,700		$	7.95	6.4 years
Granted		209,000			8.82
Exercised		(113,075	)		5.63
Expired or Canceled		(17,000	)		5.16
Outstanding – April 30, 2013		1,708,625		$	8.23	6.1 years
Granted		212,000			10.30
Exercised		(196,000	)		7.16
Expired or Canceled		(2,000	)		10.06
Outstanding – April 30, 2014		1,722,625		$	8.60	6.0 years	$3,913,368
Exercisable		1,142,750		$	8.42	4.8 years	$2,964,498
Available for future grants		6,816

13. Income Taxes (Tables)

12 Months Ended

Apr. 30, 2014

Income Tax Disclosure [Abstract]

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

The income before provision for income taxes consisted of (in thousands):

	Year Ended April 30,
	2014			2013
U.S.	$	7,565		$	7,028
Foreign		(1,265	)		(1,942	)
	$	6,300		$	5,086

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

The provision for income taxes consists of the following (in thousands):

	2014			2013
Current:
Federal	$	2,190		$	1,680
Foreign		-			-
State		230			40
Current provision		2,420			1,720
Deferred:
Federal		(280	)		(145	)
Foreign		(103	)		(585	)
State		120			(80	)
Deferred benefit		(263	)		(810	)
Change in valuation allowance		103			490
Total provision	$	2,260		$	1,400

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

The following table reconciles the reported income tax expense with the amount computed using the federal statutory income tax rate (in thousands):

	2014			2013
Computed "expected" tax expense	$	2,142		$	1,729
State and local tax, net of federal benefit		214			(81	)
Valuation allowance on deferred tax assets		103			490
Foreign losses without tax benefit		222			29
Nondeductible expenses		199			178
Nontaxable life insurance cash value increase		(151	)		(168	)
Tax credits		(203	)		(299	)
Other items, net, none of which individually exceeds 5% of federal taxes at statutory rates		(266	)		(478	)
	$	2,260		$	1,400

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

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

	2014			2013
Deferred tax assets:
Employee benefits	$	6,860		$	6,490
Inventory		1,750			1,980
Accounts receivable		570			470
Tax credits		770			990
Other liabilities		240			270
Net operating loss carryforwards		3,130			3,040
Total deferred tax asset		13,320			13,240
Deferred tax liabilities:
Marketable securities		280			540
Property, plant and equipment		1,050			1,310
Net deferred tax asset		11,990			11,390
Valuation allowance		(2,120	)		(1,900	)
Net deferred tax assets	$	9,870		$	9,490

	2014			2013
Gross current assets	$	3,600		$	3,890
Valuation allowance		-			-
Current liabilities		(380	)		(720	)
Net current deferred tax assets		3,220			3,170

Gross noncurrent assets		9,940			9,600
Valuation allowance		(2,120	)		(1,900	)
Noncurrent liabilities		(1,170	)		(1,380	)
Net noncurrent deferred tax assets		6,650			6,320
Net deferred tax assets	$	9,870		$	9,490

14. Segment Information (Tables)

12 Months Ended

Apr. 30, 2014

Segment Reporting [Abstract]

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	2014			2013
Net revenues:
FEI-NY	$	55,772		$	52,567
Gillam-FEI		9,995	**		11,825	**
FEI-Zyfer		7,990			10,523
less intersegment revenues		(2,207	)**		(5,983	)**
Consolidated revenues	$	71,550		$	68,932
Operating profit (loss):
FEI-NY	$	6,403		$	7,334
Gillam-FEI		(520	)**		(1,643	)**
FEI-Zyfer		(626	)		(552	)
Corporate		(384	)		(460	)
Consolidated operating profit	$	4,873		$	4,679

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	2014			2013
Identifiable assets:
FEI-NY (approximately $3 million in China)	$	62,969		$	55,508
Gillam-FEI (all in Belgium or France)		19,595			18,071
FEI-Zyfer		11,220			10,418
less intersegment receivables		(19,819	)		(18,903	)
Corporate		45,496			43,815
Consolidated identifiable assets	$	119,461		$	108,909
Depreciation and amortization (allocated):
FEI-NY	$	2,021		$	1,892
Gillam-FEI		261			304
FEI-Zyfer		174			202
Corporate		15			15
Consolidated depreciation and amortization expense	$	2,471		$	2,413

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

Revenues, based on the location of the procurement entity and excluding intersegment sales, were derived from the following countries:

	(in thousands)
	2014		2013
France	$	8,932	$	9,527
Belgium		5,719		4,240
Russia		1,046		355
China		492		565
Other		2,488		3,035
	$	18,677	$	17,722

15. Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Apr. 30, 2014

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The reclassification adjustments represent net realized gains on the sale or redemption of available-for-sale marketable securities that were reclassified from AOCI to Other income (expense), net.

	Change in						Foreign
	Market Value						Currency
	of Marketable						Translation
	Securities						Adjustment			Total
Balance April 30, 2012, net of taxes				$	895		$	3,275		$	4,170
Items of other comprehensive income (loss) before reclassification, pretax					868			(782	)		86
Tax effect					(313	)		-			(313	)
Items of other comprehensive income (loss)before reclassification, net of taxes					555			(782	)		(227	)
Reclassification adjustments, pretax **		(47	)
Tax effect		17			(30	)		-			(30	)
Total other comprehensive income (loss), net of taxes					525			(782	)		(257	)
Balance April 30, 2013					1,420			2,493			3,913
Items of other comprehensive income (loss) before reclassification, pretax					(292	)		505			213
Tax effect					130			-			130
Items of other comprehensive income (loss) before reclassification, net of taxes					(162	)		505			343
Reclassification adjustments, pretax **		(367	)
Tax		125			(242	)		-			(242	)
Total other comprehensive income (loss), net of taxes					(404	)		505			101
Balance April 30, 2014				$	1,016		$	2,998		$	4,014

**The reclassification adjustments represent net realized gains on the sale or redemption of available-for-sale marketable securities that were reclassified from AOCI to Other income (expense), net.

1. Summary of Accounting Policies (Details)	12 Months Ended
1. Summary of Accounting Policies (Details)	Apr. 30, 2014
Building [Member]
1. Summary of Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Other Depreciable Assets [Member] \| Minimum [Member]
1. Summary of Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Other Depreciable Assets [Member] \| Maximum [Member]
1. Summary of Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Certification Marks [Member]
1. Summary of Accounting Policies (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years

1. Summary of Accounting Policies (Details) - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Abstract]
Expected volatility	34.00%	40.00%
Dividend yield	0.00%	0.00%
Risk-free interest rate	2.45%	1.31%
Risk-free interest rate	2.50%	1.35%
Expected lives	8 years 6 months	8 years 6 months

2. Earnings Per Share (Details) (Equity Option [Member])	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Equity Option [Member]
2. Earnings Per Share (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	270,875	939,375

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References+ Details

2. Earnings Per Share (Details) - Schedule of Earnings Per Share, Basic and Diluted	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Schedule of Earnings Per Share, Basic and Diluted [Abstract]
Basic EPS Shares outstanding (weighted average)	8,526,576	8,412,633
Effect of Dilutive Securities	290,381	192,018
Diluted EPS Shares outstanding	8,816,957	8,604,651

3. Costs and Estimated Earnings in Excess of Billings (Details) - Costs and Estimated Earnings in Excess of Billings, Net (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Costs and Estimated Earnings in Excess of Billings, Net [Abstract]
Costs and estimated earnings in excess of billings	$ 11,965	$ 10,228
Billings in excess of costs and estimated earnings	(1,526)	(1,611)
Net asset	$ 10,439	$ 8,617

- Definition

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings.

+ References+ Details

4. Inventories (Details) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
4. Inventories (Details) [Line Items]
Inventory, Net	$ 41,227	$ 37,521
United States [Member]
4. Inventories (Details) [Line Items]
Inventory, Net	33,400	29,900
Belgium [Member]
4. Inventories (Details) [Line Items]
Inventory, Net	7,100	6,900
China [Member]
4. Inventories (Details) [Line Items]
Inventory, Net	$ 700	$ 700

4. Inventories (Details) - Schedule of Inventory, Current (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Schedule of Inventory, Current [Abstract]
Raw Materials and Component Parts	$ 24,986	$ 21,066
Work in Progress	12,385	13,665
Finished Goods	3,856	2,790
	$ 41,227	$ 37,521

5. Property, Plant and Equipment and Leases (Details) (USD $)	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
5. Property, Plant and Equipment and Leases (Details) [Line Items]
Depreciation	$ 2,309,000	$ 2,250,000
Cost of Property Repairs and Maintenance	940,000	993,000
Operating Leases, Rent Expense	1,500,000	1,300,000
Deferred Rent Credit, Noncurrent	380,000	310,000
Long Island, NY Headquarters [Member]
5. Property, Plant and Equipment and Leases (Details) [Line Items]
Operating Leases, Rent Expense, Minimum Rentals	800,000
Lessee Leasing Arrangements, Operating Leases, Renewal Term	5 years
FEI-Elcom Office and Manufacturing Lease [Member]
5. Property, Plant and Equipment and Leases (Details) [Line Items]
Operating Leases, Rent Expense, Minimum Rentals	28,000
Area of Real Estate Property (in Square Feet)	32,000
FEI-Asia Facility Lease [Member]
5. Property, Plant and Equipment and Leases (Details) [Line Items]
Operating Leases, Rent Expense, Minimum Rentals	6,800
Lessee Leasing Arrangements, Operating Leases, Term of Contract	1 year
FEI-Zyfer Office and Manufacturing Leases [Member]
5. Property, Plant and Equipment and Leases (Details) [Line Items]
Operating Leases, Rent Expense, Minimum Rentals	29,500
Area of Real Estate Property (in Square Feet)	27,850
Lessee Leasing Arrangements, Operating Leases, Term of Contract	40 months
Satel-FEI Office Lease [Member]
5. Property, Plant and Equipment and Leases (Details) [Line Items]
Operating Leases, Rent Expense, Minimum Rentals	$ 1,100
Lessee Leasing Arrangements, Operating Leases, Term of Contract	9 years
Minimum [Member] \| Satel-FEI Office Lease [Member]
5. Property, Plant and Equipment and Leases (Details) [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	3 years

5. Property, Plant and Equipment and Leases (Details) - Schedule of Property, Plant and Equipment (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Schedule of Property, Plant and Equipment [Abstract]
Buildings and building improvements	$ 5,976	$ 5,477
Machinery, equipment and furniture	49,651	44,758
	55,627	50,235
Less, accumulated depreciation	44,387	41,919
	$ 11,240	$ 8,316

5. Property, Plant and Equipment and Leases (Details) - Schedule of Future Minimum Rental Payments for Operating Leases (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014
Schedule of Future Minimum Rental Payments for Operating Leases [Abstract]
2015	$ 1,503
2016	1,473
2017	1,174
2018	925
2019	600
Total future minimum lease payments	$ 5,675

6. Marketable Securities (Details) - Schedule of Available-for-sale Securities (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Schedule of Available-for-sale Securities [Line Items]
Cost	$ 15,194	$ 16,775
Gross Unrealized Gains	1,025	1,563
Gross Unrealized Losses	(189)	(68)
Fair Market Value	16,030	18,270
Fixed Income Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	8,927	10,285
Gross Unrealized Gains	116	297
Gross Unrealized Losses	(36)	0
Fair Market Value	9,007	10,582
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	6,267	6,490
Gross Unrealized Gains	909	1,266
Gross Unrealized Losses	(153)	(68)
Fair Market Value	$ 7,023	$ 7,688

6. Marketable Securities (Details) - Schedule of Unrealized Gain (Loss) on Investments (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
6. Marketable Securities (Details) - Schedule of Unrealized Gain (Loss) on Investments [Line Items]
Fair Value, Less than 12 months	$ 867	$ 0
Unrealized Losses, Less than 12 months	(4)	0
Fair Value, Morethan 12 months	1,373	512
Unrealized Losses, More than 12 months	(185)	(68)
Fair Value	2,240	512
Unrealized Losses	(189)	(68)
Fixed Income Securities [Member]
6. Marketable Securities (Details) - Schedule of Unrealized Gain (Loss) on Investments [Line Items]
Fair Value, Less than 12 months	501	0
Unrealized Losses, Less than 12 months	(3)	0
Fair Value, Morethan 12 months	448	0
Unrealized Losses, More than 12 months	(33)	0
Fair Value	949	0
Unrealized Losses	(36)	0
Equity Securities [Member]
6. Marketable Securities (Details) - Schedule of Unrealized Gain (Loss) on Investments [Line Items]
Fair Value, Less than 12 months	366	0
Unrealized Losses, Less than 12 months	(1)	0
Fair Value, Morethan 12 months	925	512
Unrealized Losses, More than 12 months	(152)	(68)
Fair Value	1,291	512
Unrealized Losses	$ (153)	$ (68)

6. Marketable Securities (Details) - Schedule of Gain (Loss) on Investments (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Schedule of Gain (Loss) on Investments [Abstract]
Proceeds	$ 4,993	$ 3,006
Gross realized gains	367	47
Gross realized losses	$ 0	$ 0

6. Marketable Securities (Details) - Schedule of Fair Value, by Balance Sheet Grouping (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Current	$ 16,030	$ 18,270
Fixed Income Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Current	4,014
Due after one year through five years	3,086
Due after five years through ten years	1,827
	$ 8,927

7. Debt Obligations (Details)	12 Months Ended		0 Months Ended		0 Months Ended		12 Months Ended			12 Months Ended
7. Debt Obligations (Details)	Apr. 30, 2014 USD ($)	Apr. 30, 2013 USD ($)	Jun. 06, 2013 Debt Instrument, Tranche B [Member] JP Morgan Chase Bank, N.A. [Member] London Interbank Offered Rate (LIBOR) [Member]	Jun. 06, 2013 Debt Instrument, Tranche B [Member] JP Morgan Chase Bank, N.A. [Member] USD ($)	Jun. 06, 2013 Debt Instrument, Tranche A [Member] JP Morgan Chase Bank, N.A. [Member] London Interbank Offered Rate (LIBOR) [Member]	Jun. 06, 2013 JP Morgan Chase Bank, N.A. [Member] USD ($)	Apr. 30, 2014 JP Morgan Chase Bank, N.A. [Member] USD ($)	Jun. 06, 2013 JP Morgan Chase Bank, N.A. [Member] USD ($)	Apr. 30, 2013 JP Morgan Chase Bank, N.A. [Member] USD ($)	Apr. 30, 2013 Former Financial Institution [Member] USD ($)	Apr. 30, 2013 Former Financial Institution [Member] Maximum [Member] USD ($)	Apr. 30, 2013 Former Financial Institution [Member] Minimum [Member]	Apr. 30, 2014 European Bank [Member] Eurodollar [Member]	Apr. 30, 2014 European Bank [Member] USD ($)	Apr. 30, 2014 European Bank [Member] EUR (€)	Apr. 30, 2013 European Bank [Member] USD ($)
7. Debt Obligations (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 15,000,000				$ 25,000,000		$ 9,300,000
Proceeds from Lines of Credit	4,100,000	5,000,000				7,200,000	4,100,000			5,000,000	8,500,000
Short-term Debt								9,300,000						0		0
Long-term Line of Credit									6,000,000
Debt Instrument, Basis Spread on Variable Rate			1.75%		0.75%								1.00%
Line of Credit Facility, Expiration Date						Jun. 05, 2018
Line of Credit Facility, Commitment Fee Percentage						0.10%
Repayments of Lines of Credit										5,000,000
Debt Instrument, Maturity Date, Description										no maturity date
Line of Credit Facility, Interest Rate During Period											1.80%	1.70%
Line of Credit Facility, Remaining Borrowing Capacity														$ 350,000	€ 250,000
Line of Credit Facility, Expiration Period														1 year	1 year
Line of Credit Facility, Interest Rate at Period End														1.235%	1.235%	1.117%

8. Accrued Liabilities (Details) - Schedule of Accrued Liabilities (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012
Schedule of Accrued Liabilities [Abstract]
Vacation and other compensation	$ 1,761	$ 1,794
Incentive compensation	1,389	1,634
Payroll taxes	1,613	1,323
Deferred revenue	1,023	1,620
Warranty reserve	617	598	778
Other	958	995
	$ 7,361	$ 7,964

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable for statutory payroll taxes incurred through that date and withheld from employees pertaining to services received from them, including entity's matching share of the employees FICA taxes and contributions to the state and federal unemployment insurance programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details

9. Product Warranties (Details) - Schedule of Product Warranty Liability (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Schedule of Product Warranty Liability [Abstract]
Balance at beginning of year	$ 598	$ 778
Warranty costs incurred	(339)	(324)
Product warranty accrual	358	144
Balance at end of year	$ 617	$ 598

- Definition

+ References+ Details

10. Investment in Morion, Inc. (Details) (USD $)	12 Months Ended		0 Months Ended	1 Months Ended		12 Months Ended
10. Investment in Morion, Inc. (Details) (USD $)	Apr. 30, 2014 Technology Transfer, Training and Sale of Parts [Member] Morion Inc. Licensing Agreement [Member]	Apr. 30, 2014 Technology Transfer, Training and Sale of Parts [Member] Morion Inc [Member]	Oct. 22, 2012 Licensing Agreement [Member] Morion Inc [Member]	Nov. 30, 2012 Licensing Agreement [Member] Morion Inc [Member]	Oct. 22, 2012 Licensing Agreement [Member] Morion Inc [Member]	Apr. 30, 2014 Morion Inc [Member]	Apr. 30, 2013 Morion Inc [Member]
10. Investment in Morion, Inc. (Details) [Line Items]
Cost Method Investment Ownership Percentage						4.60%
Related Party Transaction, Purchases from Related Party						$ 213,000	$ 54,000
Revenue from Related Parties		500,000				1,044,000	355,000
Accounts Receivable, Related Parties, Current						276,000	34,000
License And Equipment Fee Receivable			2,700,000
Percentage Of Royalties Payable On Third Party Sales			5.00%
Long-term Purchase Commitment, Period			5 years
Purchase Commitment, Remaining Minimum Amount Committed					400,000
Proceeds from Deposits from Customers				925,000			925,000
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	$ 736,000

11. Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended			1 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2004 Frequency Electronics Inc Zyfer [Member]	Feb. 29, 2012 FEI-Elcom [Member]
11. Goodwill and Other Intangible Assets (Details) [Line Items]
Goodwill			$ 218,000	$ 398,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				275,000
Finite-Lived Intangible Asset, Useful Life				3 years
Amortization of Intangible Assets	$ 91,000	$ 91,000

12. Employee Benefit Plans (Details) (USD $)	12 Months Ended			12 Months Ended		12 Months Ended													12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
12. Employee Benefit Plans (Details) (USD $)	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2014 Options at $13.15 [Member] Employee Stock Option [Member] Incentive Stock Options [Member]	Apr. 30, 2014 Options at $8.01 [Member] Employees and Directors [Member] Stock Appreciation Rights (SARs) [Member]	Apr. 30, 2014 Immediate Family Member of Management or Principal Owner [Member] Nonqualified Stock Options [Member]	Apr. 30, 2013 Immediate Family Member of Management or Principal Owner [Member] Nonqualified Stock Options [Member]	Apr. 30, 2012 Immediate Family Member of Management or Principal Owner [Member] Nonqualified Stock Options [Member]	Apr. 30, 2014 Employees and Directors [Member] Stock Appreciation Rights (SARs) [Member]	Apr. 30, 2014 Stock Appreciation Rights (SARs) [Member]	Apr. 30, 2014 Employee Stock Option [Member] Incentive Stock Options [Member]	Apr. 30, 2014 Employee Stock Option [Member] ISO and NQSO [Member]	Apr. 30, 2014 Employee Stock Option [Member]	Apr. 30, 2013 Employee Stock Option [Member]	Apr. 30, 2014 United States Post-Retirement Benefit Plan of US Entity, Defined Benefit [Member]	Apr. 30, 2013 United States Post-Retirement Benefit Plan of US Entity, Defined Benefit [Member]	Apr. 30, 2014 Income Incentive Pool [Member]	Apr. 30, 2013 Income Incentive Pool [Member]	Apr. 30, 2014 Independent Contractor Stock Option Plan [Member]	Apr. 30, 2013 Independent Contractor Stock Option Plan [Member]	Apr. 30, 2006 Independent Contractor Stock Option Plan [Member]	Apr. 30, 1990 Restricted Stock Plan [Member]	Apr. 30, 2014 Restricted Stock Plan [Member]	Apr. 30, 2013 Restricted Stock Plan [Member]	Apr. 30, 1990 Employee Stock Ownership Plan [Member]	Apr. 30, 2014 Employee Stock Ownership Plan [Member]	Apr. 30, 2000 Employee Stock Ownership Plan [Member]	Apr. 30, 2014 Deferred Compensation Agreement [Member]	Apr. 30, 2013 Deferred Compensation Agreement [Member]
12. Employee Benefit Plans (Details) [Line Items]
Stock Issued During Period, Shares, Employee Benefit Plan															41,775	52,715
Stock Issued During Period, Value, Employee Benefit Plan (in Dollars)	$ 466,000	$ 456,000													$ 466,000	$ 456,000
Adjustments to Additional Paid in Capital, Share-based Compensation, Employee Stock Purchase Program, Requisite Service Period Recognition (in Dollars)															277,000	214,000
Common Stock, Capital Shares Reserved for Future Issuance															464,652
Accrued Bonuses (in Dollars)																	1,300,000	1,600,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period										4 years			4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period						1 year				10 years			10 years									4 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	212,000	209,000		95,000				56,625	1,711,000		172,500
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)	$ 10.30	$ 8.82		$ 13.15				$ 5.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	(196,000)	(113,075)				17,500	19,125		101,000		77,500	95,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercise Price (in Dollars per share)					$ 8.01	$ 6.67	$ 3.50																$ 4.00	$ 4.00
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures						7,276	11,011		50,556			14,828
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	1,722,625	1,708,625	1,629,700		1,028,000	20,000			1,608,000										30,000	30,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	1,142,750					20,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	6,816								50,444			80,172										375,000	7,500	7,500
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)	2,016,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares	268,875	254,813
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value (in Dollars)	993,000	847,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value (in Dollars per share)	$ 4.57	$ 4.16
Employee Benefits and Share-based Compensation (in Dollars)	1,246,000	1,072,000											426,000	410,000
Share-based Compensation (in Dollars)	1,105,000	947,000											676,000	537,000					0	0
Deferred Tax Expense from Stock Options Exercised (in Dollars)													182,000	152,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized																					350,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in Dollars per share)	$ 8.60	$ 8.23	$ 7.95																$ 14.76	$ 14.76
Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP																									561,652
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized																									510,000
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares																											(1,071,652)
Employee Stock Ownership Plan (ESOP), Shares in ESOP																										402,378
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 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 (in Dollars)																												$ 780,000	$ 616,000

12. Employee Benefit Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity (USD $)	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012
Schedule of Share-based Compensation, Stock Options, Activity [Abstract]
Options, Shares Outstanding	1,722,625	1,708,625	1,629,700
Options, Weighted-Average Exercise Price (in Dollars per share)	$ 8.60	$ 8.23	$ 7.95
Options, Weighted Average Remaining Contractual Term	6 years	6 years 36 days	6 years 146 days
Options, Aggregate Intrinsic Value (in Dollars)	$ 3,913,368
Exercisable	1,142,750
Exercisable (in Dollars per share)	$ 8.42
Exercisable	4 years 292 days
Exercisable (in Dollars)	$ 2,964,498
Available for future grants	6,816
Options, Shares Granted	212,000	209,000
Options, Weighted-Average Exercise Price Granted (in Dollars per share)	$ 10.30	$ 8.82
Options, Shares Exercised	(196,000)	(113,075)
Options, Weighted-Average Exercise Price Exercised (in Dollars per share)	$ 7.16	$ 5.63
Options, Shares Expired or Canceled	(2,000)	(17,000)
Options, Weighted-Average Exercise Price Expired or Canceled (in Dollars per share)	$ 10.06	$ 5.16

13. Income Taxes (Details) (USD $)	12 Months Ended
13. Income Taxes (Details) (USD $)	Apr. 30, 2014	Apr. 30, 2013
13. Income Taxes (Details) [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	$ 3,600,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	5,600,000
Tax Credit Carryforward, Expiration Term	18 years
Foreign Exchange [Member] \| Valuation Allowance of Deferred Tax Assets [Member]
13. Income Taxes (Details) [Line Items]
Valuation Allowances and Reserves, Period Increase (Decrease)	117,000	45,000
Deferred Tax Provision [Member] \| Valuation Allowance of Deferred Tax Assets [Member]
13. Income Taxes (Details) [Line Items]
Valuation Allowances and Reserves, Period Increase (Decrease)		490,000
Valuation Allowance of Deferred Tax Assets [Member]
13. Income Taxes (Details) [Line Items]
Valuation Allowances and Reserves, Period Increase (Decrease)	$ 220,000	$ 445,000

13. Income Taxes (Details) - Schedule of Income before Income Tax, Domestic and Foreign (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Schedule of Income before Income Tax, Domestic and Foreign [Abstract]
U.S.	$ 7,565	$ 7,028
Foreign	(1,265)	(1,942)
	$ 6,300	$ 5,086

13. Income Taxes (Details) - Schedule of Components of Income Tax Expense (Benefit) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Current:
Federal	$ 2,190	$ 1,680
Foreign	0	0
State	230	40
Current provision	2,420	1,720
Deferred:
Federal	(280)	(145)
Foreign	(103)	(585)
State	120	(80)
Deferred benefit	(263)	(810)
Change in valuation allowance	103	490
Total provision	$ 2,260	$ 1,400

13. Income Taxes (Details) - Schedule of Effective Income Tax Rate Reconciliation (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Schedule of Effective Income Tax Rate Reconciliation [Abstract]
Computed "expected" tax expense	$ 2,142	$ 1,729
State and local tax, net of federal benefit	214	(81)
Valuation allowance on deferred tax assets	103	490
Foreign losses without tax benefit	222	29
Nondeductible expenses	199	178
Nontaxable life insurance cash value increase	(151)	(168)
Tax credits	(203)	(299)
Other items, net, none of which individually exceeds 5% of federal taxes at statutory rates	(266)	(478)
	$ 2,260	$ 1,400

13. Income Taxes (Details) - Schedule of Deferred Tax Assets and Liabilities (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Deferred tax assets:
Employee benefits	$ 6,860	$ 6,490
Inventory	1,750	1,980
Accounts receivable	570	470
Tax credits	770	990
Other liabilities	240	270
Net operating loss carryforwards	3,130	3,040
Total deferred tax asset	13,320	13,240
Deferred tax liabilities:
Marketable securities	280	540
Property, plant and equipment	1,050	1,310
Net deferred tax asset	11,990	11,390
Valuation allowance	(2,120)	(1,900)
Net deferred tax assets	9,870	9,490
Gross current assets	3,600	3,890
Valuation allowance	0	0
Current liabilities	(380)	(720)
Net current deferred tax assets	3,220	3,170
Gross noncurrent assets	9,940	9,600
Valuation allowance	(2,120)	(1,900)
Noncurrent liabilities	(1,170)	(1,380)
Net noncurrent deferred tax assets	$ 6,650	$ 6,320

14. Segment Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
14. Segment Information (Details) [Line Items]
Number of Reportable Segments	3
Number of Operating Segments	3
U.S. Government and U.S. Government Subcontractors [Member] \| Sales Revenue, Net [Member] \| Customer Concentration Risk [Member]
14. Segment Information (Details) [Line Items]
Concentration Risk, Percentage	54.00%	62.00%
Frequency Electronics Inc New York [Member] \| Sales Revenue, Net [Member] \| Customer Concentration Risk [Member]
14. Segment Information (Details) [Line Items]
Concentration Risk, Percentage	53.00%	65.00%
Concentration Risk, Customer	two customers	three customers
Frequency Electronics Inc New York [Member]
14. Segment Information (Details) [Line Items]
Number Of Principal Markets	3
Revenue, Net	$ 29.4	$ 34.1
Segment Reporting, Disclosure of Major Customers	Each of these customers also exceeded 10% of the Company's consolidated revenues.	Each of these customers also exceeded 10% of the Company's consolidated revenues.
Gillam Frequency Electronics Inc [Member]
14. Segment Information (Details) [Line Items]
Sales Revenue, Goods, Gross	1.6	4.1
Inventory Write-down		$ 1.4
Segment Reporting, Disclosure of Major Customers	one customer exceeded 10% of that segment's revenues.	one customer exceeded 10% of that segment's revenues
Frequency Electronics Inc Zyfer [Member]
14. Segment Information (Details) [Line Items]
Segment Reporting, Disclosure of Major Customers	one customer accounted for more than 10% of that segment's sales.	two customers accounted for more than 10% of that segment's sales
Gillam-FEI and FEI-Zyfer [Member]
14. Segment Information (Details) [Line Items]
Segment Reporting, Disclosure of Major Customers	None of the customers in the Gillam-FEI and FEI-Zyfer segments accounted for more than 10% of consolidated revenues.	None of the customers in the Gillam-FEI and FEI-Zyfer segments accounted for more than 10% of consolidated revenues

14. Segment Information (Details) - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Apr. 30, 2014

Apr. 30, 2013

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenues

$ 71,550

$ 68,932

Operating profit (loss)

4,873

4,679

Frequency Electronics Inc New York [Member]

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenues

55,772

52,567

Operating profit (loss)

6,403

7,334

Gillam Frequency Electronics Inc [Member]

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenues

9,995

^[1]

11,825

Operating profit (loss)

(520)

^[1]

(1,643)

^[1]

Frequency Electronics Inc Zyfer [Member]

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenues

7,990

10,523

Operating profit (loss)

(626)

(552)

Inter Segment [Member]

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenues

(2,207)

(5,983)

Corporate Segment [Member]

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Operating profit (loss)

$ (384)

$ (460)

[1]

For fiscal years ended April 30, 2014 and 2013, includes Gillam-FEI intersegment sales of $1.6 million and $4.1 million, respectively, to the FEI-NY and FEI-Zyfer segments. Such sales consist principally of design and development of automatic test equipment for satellite hardware production and manufacture of assemblies and units of a wireline synchronization product for ultimate production and sale in the U.S. In the Gillam-FEI segment, these transactions reduced the operating loss in each of the fiscal years. In addition, during the fourth quarter of fiscal year 2013, Gillam-FEI wrote down $1.4 million of accumulated costs related to hardware and software design of a product in connection with the French government's smart electrical grid initiative. Based on slower than anticipated rollout of this project, the Company has less visibility regarding the probable schedule for obtaining production-level orders, which are now anticipated to occur no earlier than fiscal year 2015.

14. Segment Information (Details) - Schedule of Reconciliation of Assets from Segment to Consolidated (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable Assets	$ 119,461	$ 108,909
Depreciation and Amortization	2,471	2,413
Frequency Electronics Inc New York [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable Assets	62,969	55,508
Depreciation and Amortization	2,021	1,892
Gillam Frequency Electronics Inc [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable Assets	19,595	18,071
Depreciation and Amortization	261	304
Frequency Electronics Inc Zyfer [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable Assets	11,220	10,418
Depreciation and Amortization	174	202
Inter Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable Assets	(19,819)	(18,903)
Corporate Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable Assets	45,496	43,815
Depreciation and Amortization	$ 15	$ 15

14. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
14. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Line Items]
Revenues	$ 71,550	$ 68,932
France [Member]
14. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Line Items]
Revenues	8,932	9,527
Belgium [Member]
14. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Line Items]
Revenues	5,719	4,240
Russia [Member]
14. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Line Items]
Revenues	1,046	355
China [Member]
14. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Line Items]
Revenues	492	565
Other Countries [Member]
14. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Line Items]
Revenues	2,488	3,035
Foreign Revenue [Member]
14. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Line Items]
Revenues	$ 18,677	$ 17,722

15. Other Comprehensive Income (Loss) (Details) - Schedule of Accumulated Other Comprehensive Income (Loss) (USD $)

12 Months Ended

Apr. 30, 2014

Apr. 30, 2013

Schedule of Accumulated Other Comprehensive Income (Loss) [Abstract]

Balance, Change in Market Value of Marketable Securities

$ 1,420,000

$ 895,000

Balance, Foreign Currency Translation Adjustment

2,493,000

3,275,000

Balance, Total

3,913,000

4,170,000

Items of other comprehensive income (loss) before reclassification, pretax, Change in Market Value of Marketable Securities

(292,000)

868,000

Items of other comprehensive income (loss) before reclassification, pretax, Foreign Currency Translation Adjustment

505,000

(782,000)

Items of other comprehensive income (loss) before reclassification, pretax, Total

213,000

86,000

Tax effect - Change in Market Value of Marketable Securities

130,000

(313,000)

Tax effect - Foreign Currency Transalation Adjustment

Tax effect - Total

130,000

(313,000)

Items of other comprehensive income (loss)before reclassification, net of taxes, Market Value of Marketable Securities

(162,000)

555,000

Items of other comprehensive income (loss)before reclassification, net of taxes, Foreign Currency Translation Adjustment

505,000

(782,000)

Items of other comprehensive income (loss)before reclassification, net of taxes, Total

343,000

(227,000)

Reclassification adjustments, pretax - Marketable Securities

(367,000)

^[1]

(47,000)

^[1]

Tax - Marketable Securities

125,000

17,000

Reclassification Adjustment, Net of Taxes - Marketable Securities

(242,000)

(30,000)

Tax effect - Foreign Currency Transalation Adjustment

Reclassification Adjustment, Net of Taxes - Marketable Securities

(242,000)

(30,000)

Total other comprehensive income (loss), net of taxes, Marketable Securities

(404,000)

525,000

Total other comprehensive income (loss), net of taxes, Foreign Currency Transalation Adjustment

505,000

(782,000)

Total other comprehensive income (loss), net of taxes, Total

101,000

(257,000)

Balance, Change in Market Value of Marketable Securities

1,016,000

1,420,000

Balance, Foreign Currency Translation Adjustment

2,998,000

2,493,000

Balance, Total

$ 4,014,000

$ 3,913,000

[1]	The reclassification adjustments represent net realized gains on the sale or redemption of available-for-sale marketable securities that were reclassified from AOCI to Other income (expense), net.

9. Product Warranties (Details)	12 Months Ended
9. Product Warranties (Details)	Apr. 30, 2014
Product Warranties Disclosures [Abstract]
Standard Product Warranty Description	one-year warranty regarding the manufactured quality and functionality of its products. For some limited products, the warranty period has been extended.

Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) (Retained Earnings [Member], USD $)	12 Months Ended
	Apr. 30, 2013
Retained Earnings [Member]
Cash dividend, per share	$ 0.20

Non-cash operating and investing activities: (Details) (Morion Inc [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2013
Morion Inc [Member]
Non-cash operating and investing activities: (Details) [Line Items]
Proceeds from Deposits from Customers	$ 925

14. Segment Information (Details) - Schedule of Reconciliation of Assets from Segment to Consolidated (Parentheticals) (Frequency Electronics Inc New York [Member], CNY) In Millions, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Frequency Electronics Inc New York [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable assets in China	3	3