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 [Member]	Total
Balance at Mar. 31, 2021	$ 3,310	$ 529	$ 79,792	$ (19,985)	$ (33,201)	$ 30,445
Balance (in shares) at Mar. 31, 2021		52,965,797
Net (loss)	0	$ 0	0	(2,711)	0	(2,711)
Balance at Dec. 31, 2021	3,310	$ 529	79,792	(22,696)	(33,201)	27,734
Balance (in shares) at Dec. 31, 2021		52,965,797
Balance at Mar. 31, 2022	3,310	$ 529	79,792	(23,611)	(33,201)	26,819
Balance (in shares) at Mar. 31, 2022		52,965,797
Net (loss)	0	$ 0	0	(1,471)	0	(1,471)
Balance at Dec. 31, 2022	$ 3,310	$ 529	$ 79,792	$ (25,082)	$ (33,201)	$ 25,348
Balance (in shares) at Dec. 31, 2022		52,965,797