Note A - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

	(In thousands)
	MARKETABLE SECURITIES
	Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses
December 31, 2024
Certificates of Deposit		4,965		5,010		45		-
Total Marketable Securities	$	4,965	$	5,010	$	45	$	-
December 31, 2023
Certificates of Deposit		21,305		21,331		58		31
Variable Rate Demand Notes		5,123		5,123		-		-
Total Marketable Securities	$	26,428	$	26,454	$	58	$	31

Schedule of Goodwill [Table Text Block]

	Defense
Balance at December 31, 2022	$	18,573
Additions		860
Less: Impairments		-
Balance at December 31, 2023	$	19,433
Additions		-
Less: Impairments		-
Balance at December 31, 2024	$	19,433

Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Table Text Block]

	(In thousands)
	INTANGIBLE ASSETS
	Technology Software and Other			Contracts/ Customer Relationships			Trade Secrets		Total
December 31, 2024
Gross Carrying Amount	$	290		$	4,290		$	1,000	$	5,290
Accumulated Amortization		(290	)		(1,513	)		-		(1,513	)
Net intangible assets	$	-		$	2,777		$	1,000	$	3,777
December 31, 2023
Gross Carrying Amount	$	290		$	6,058		$	1,000	$	7,348
Accumulated Amortization		(290	)		(1,768	)		-		(2,058	)
Net intangible assets	$	-		$	4,290		$	1,000	$	5,290

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Years ending December 31:	(In thousands)
2026	$	1,515
2027		1,262
	$	2,777

Schedule of Product Warranty Liability [Table Text Block]

	(In thousands)
	Year Ended December 31
	2024			2023
Beginning balance January 1	$	366		$	521
Accruals during the period		1,021			1,548
Charges / payments made under the warranties		(1,299	)		(1,703	)
Balance December 31	$	88		$	366