Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Mar. 31, 2022	3,677	52,965,797
Balance at Mar. 31, 2022	$ 3,310	$ 529	$ 79,792	$ (23,611)	$ (33,201)	$ 26,819
Net income (loss)	$ 0	$ 0	0	(1,471)	0	(1,471)
Balance (in shares) at Dec. 31, 2022	3,677	52,965,797
Balance at Dec. 31, 2022	$ 3,310	$ 529	79,792	(25,082)	(33,201)	25,348
Balance (in shares) at Mar. 31, 2023	3,677	52,965,797
Balance at Mar. 31, 2023	$ 3,310	$ 529	79,792	(24,971)	(33,201)	25,459
Net income (loss)	$ 0	$ 0	0	1,649	0	1,649
Balance (in shares) at Dec. 31, 2023	3,677	52,965,797
Balance at Dec. 31, 2023	$ 3,310	$ 529	$ 79,792	$ (23,322)	$ (33,201)	$ 27,108