Note A - Summary of Significant Accounting Policies - Schedule of Goodwill (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Balance at December 31, 2022	$ 19,433,000
Less: Impairments	0	$ 0	$ (3,832,000)
Balance at December 31, 2023	19,433,000	19,433,000
Defense [Member]
Balance at December 31, 2022	19,433,000
Less: Impairments	0	0
Balance at December 31, 2023	19,433,000	19,433,000
Defense [Member] | Operating Segments [Member]
Balance at December 31, 2022	19,433,000	18,573,000
Additions	0	860,000
Less: Impairments	0	0
Balance at December 31, 2023	$ 19,433,000	$ 19,433,000	$ 18,573,000