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 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 income (loss)	0	$ 0	0	(1,230)	0	(1,230)
Balance at Sep. 30, 2022	3,310	$ 529	79,792	(24,841)	(33,201)	25,589
Balance (in shares) at Sep. 30, 2022		52,965,797
Balance at Mar. 31, 2023	3,310	$ 529	79,792	(24,971)	(33,201)	25,459
Balance (in shares) at Mar. 31, 2023		52,965,797
Net income (loss)	0	$ 0	0	2,070	0	2,070
Balance at Sep. 30, 2023	$ 3,310	$ 529	$ 79,792	$ (22,901)	$ (33,201)	$ 27,529
Balance (in shares) at Sep. 30, 2023		52,965,797