Consolidated Statements of Changes in Shareholders' Equity - 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	(1,360)	0	(1,360)
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	766	0	766
Balance (in shares) at Mar. 31, 2024	3,677	52,965,797
Balance at Mar. 31, 2024	$ 3,310	$ 529	$ 79,792	$ (24,205)	$ (33,201)	$ 26,225