001 - Statement - Consolidated Balance Sheets link:presentationLink link:definitionLink link:calculationLink 002 - Statement - Consolidated Balance Sheets (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 003 - Statement - Consolidated Statements of Income and Comprehensive Income link:presentationLink link:definitionLink link:calculationLink 003 - Statement - Consolidated Statements of Income and Comprehensive Income Alternate 0 link:presentationLink link:definitionLink link:calculationLink 004 - Statement - Consolidated Statements of Income and Comprehensive Income (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 005 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:definitionLink link:calculationLink 006 - Statement - Consolidated Statements of Changes in Stockholders' Equity link:presentationLink link:definitionLink link:calculationLink 007 - Disclosure - Non-cash operating and investing activities: link:presentationLink link:definitionLink link:calculationLink 008 - Disclosure - 1. Summary of Accounting Policies link:presentationLink link:definitionLink link:calculationLink 009 - Disclosure - 2. Earnings Per Share link:presentationLink link:definitionLink link:calculationLink 010 - Disclosure - 3. Costs and Estimated Earnings in Excess of Billings link:presentationLink link:definitionLink link:calculationLink 011 - Disclosure - 4. Inventories link:presentationLink link:definitionLink link:calculationLink 012 - Disclosure - 5. Property, Plant and Equipment and Leases link:presentationLink link:definitionLink link:calculationLink 013 - Disclosure - 6. Marketable Securities link:presentationLink link:definitionLink link:calculationLink 014 - Disclosure - 7. Debt Obligations link:presentationLink link:definitionLink link:calculationLink 015 - Disclosure - 8. Accrued Liabilities link:presentationLink link:definitionLink link:calculationLink 016 - Disclosure - 9. Investment in Morion, Inc. link:presentationLink link:definitionLink link:calculationLink 017 - Disclosure - 10. Goodwill and Other Intangible Assets link:presentationLink link:definitionLink link:calculationLink 018 - Disclosure - 11. Employee Benefit Plans link:presentationLink link:definitionLink link:calculationLink 019 - Disclosure - 12. Income Taxes link:presentationLink link:definitionLink link:calculationLink 020 - Disclosure - 13. Segment Information link:presentationLink link:definitionLink link:calculationLink 021 - Disclosure - 14. Product Warranties link:presentationLink link:definitionLink link:calculationLink 022 - Disclosure - 15. Other Comprehensive Income (Loss) link:presentationLink link:definitionLink link:calculationLink 023 - Disclosure - Accounting Policies, by Policy (Policies) link:presentationLink link:definitionLink link:calculationLink 024 - Disclosure - 1. Summary of Accounting Policies (Tables) link:presentationLink link:definitionLink link:calculationLink 025 - Disclosure - 2. Earnings Per Share (Tables) link:presentationLink link:definitionLink link:calculationLink 026 - Disclosure - 3. Costs and Estimated Earnings in Excess of Billings (Tables) link:presentationLink link:definitionLink link:calculationLink 027 - Disclosure - 4. Inventories (Tables) link:presentationLink link:definitionLink link:calculationLink 028 - Disclosure - 5. Property, Plant and Equipment and Leases (Tables) link:presentationLink link:definitionLink link:calculationLink 029 - Disclosure - 6. Marketable Securities (Tables) link:presentationLink link:definitionLink link:calculationLink 030 - Disclosure - 8. Accrued Liabilities (Tables) link:presentationLink link:definitionLink link:calculationLink 031 - Disclosure - 11. Employee Benefit Plans (Tables) link:presentationLink link:definitionLink link:calculationLink 032 - Disclosure - 12. Income Taxes (Tables) link:presentationLink link:definitionLink link:calculationLink 033 - Disclosure - 13. Segment Information (Tables) link:presentationLink link:definitionLink link:calculationLink 034 - Disclosure - 14. Product Warranties (Tables) link:presentationLink link:definitionLink link:calculationLink 035 - Disclosure - 15. Other Comprehensive Income (Loss) (Tables) link:presentationLink link:definitionLink link:calculationLink 036 - Disclosure - Non-cash operating and investing activities: (Details) link:presentationLink link:definitionLink link:calculationLink 037 - Disclosure - 1. Summary of Accounting Policies (Details) link:presentationLink link:definitionLink link:calculationLink 038 - Disclosure - 1. Summary of Accounting Policies (Details) - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions link:presentationLink link:definitionLink link:calculationLink 039 - Disclosure - 2. Earnings Per Share (Details) link:presentationLink link:definitionLink link:calculationLink 040 - Disclosure - 2. Earnings Per Share (Details) - Schedule of Earnings Per Share, Basic and Diluted link:presentationLink link:definitionLink link:calculationLink 041 - Disclosure - 3. Costs and Estimated Earnings in Excess of Billings (Details) link:presentationLink link:definitionLink link:calculationLink 042 - Disclosure - 3. Costs and Estimated Earnings in Excess of Billings (Details) - Costs and Estimated Earnings in Excess of Billings, Net link:presentationLink link:definitionLink link:calculationLink 043 - Disclosure - 4. Inventories (Details) link:presentationLink link:definitionLink link:calculationLink 044 - Disclosure - 4. Inventories (Details) - Schedule of Inventory, Current link:presentationLink link:definitionLink link:calculationLink 045 - Disclosure - 5. Property, Plant and Equipment and Leases (Details) link:presentationLink link:definitionLink link:calculationLink 046 - Disclosure - 5. Property, Plant and Equipment and Leases (Details) - Schedule of Property, Plant and Equipment link:presentationLink link:definitionLink link:calculationLink 047 - Disclosure - 5. Property, Plant and Equipment and Leases (Details) - Schedule of Future Minimum Rental Payments for Operating Leases link:presentationLink link:definitionLink link:calculationLink 048 - Disclosure - 6. Marketable Securities (Details) - Schedule of Available-for-sale Securities link:presentationLink link:definitionLink link:calculationLink 049 - Disclosure - 6. Marketable Securities (Details) - Schedule of Unrealized Gain (Loss) on Investments link:presentationLink link:definitionLink link:calculationLink 050 - Disclosure - 6. Marketable Securities (Details) - Schedule of Realized Gain (Loss) on Investments link:presentationLink link:definitionLink link:calculationLink 051 - Disclosure - 6. Marketable Securities (Details) - Schedule of Fair Value, by Balance Sheet Grouping link:presentationLink link:definitionLink link:calculationLink 052 - Disclosure - 7. Debt Obligations (Details) link:presentationLink link:definitionLink link:calculationLink 053 - Disclosure - 8. Accrued Liabilities (Details) - Schedule of Accrued Liabilities link:presentationLink link:definitionLink link:calculationLink 054 - Disclosure - 9. Investment in Morion, Inc. (Details) link:presentationLink link:definitionLink link:calculationLink 055 - Disclosure - 10. Goodwill and Other Intangible Assets (Details) link:presentationLink link:definitionLink link:calculationLink 056 - Disclosure - 11. Employee Benefit Plans (Details) link:presentationLink link:definitionLink link:calculationLink 057 - Disclosure - 11. Employee Benefit Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity link:presentationLink link:definitionLink link:calculationLink 058 - Disclosure - 12. Income Taxes (Details) link:presentationLink link:definitionLink link:calculationLink 059 - Disclosure - 12. Income Taxes (Details) - Schedule of Income before Income Tax, Domestic and Foreign link:presentationLink link:definitionLink link:calculationLink 060 - Disclosure - 12. Income Taxes (Details) - Schedule of Components of Income Tax Expense (Benefit) link:presentationLink link:definitionLink link:calculationLink 061 - Disclosure - 12. Income Taxes (Details) - Schedule of Effective Income Tax Rate Reconciliation link:presentationLink link:definitionLink link:calculationLink 062 - Disclosure - 12. Income Taxes (Details) - Schedule of Effective Income Tax Rate Reconciliation (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 063 - Disclosure - 12. Income Taxes (Details) - Schedule of Deferred Tax Assets and Liabilities link:presentationLink link:definitionLink link:calculationLink 063 - Disclosure - 12. Income Taxes (Details) - Schedule of Deferred Tax Assets and Liabilities Alternate 0 link:presentationLink link:definitionLink link:calculationLink 064 - Disclosure - 13. Segment Information (Details) link:presentationLink link:definitionLink link:calculationLink 065 - Disclosure - 13. Segment Information (Details) - Reconciliation of Revenue from Segments to Consolidated link:presentationLink link:definitionLink link:calculationLink 066 - Disclosure - 13. Segment Information (Details) - Reconciliation of Operating Profit (Loss) from Segments to Consolidated link:presentationLink link:definitionLink link:calculationLink 067 - Disclosure - 13. Segment Information (Details) - Schedule of Reconciliation of Assets from Segment to Consolidated link:presentationLink link:definitionLink link:calculationLink 068 - Disclosure - 13. Segment Information (Details) - Schedule of Reconciliation of Assets from Segment to Consolidated (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 069 - Disclosure - 13. Segment Information (Details) - Schedule of Reconciliation of Depreciation and Amortization from Segment to Consolidated link:presentationLink link:definitionLink link:calculationLink 070 - Disclosure - 13. Segment Information (Details) - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area link:presentationLink link:definitionLink link:calculationLink 071 - Disclosure - 14. Product Warranties (Details) link:presentationLink link:definitionLink link:calculationLink 072 - Disclosure - 14. Product Warranties (Details) - Schedule of Product Warranty Liability link:presentationLink link:definitionLink link:calculationLink 073 - Disclosure - 15. Other Comprehensive Income (Loss) (Details) - Schedule of Accumulated Other Comprehensive Income (Loss) link:presentationLink link:definitionLink link:calculationLink 000 - Disclosure - Document And Entity Information link:presentationLink link:definitionLink link:calculationLink