CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock
Balance at Mar. 31, 2018	$ 43,783	$ 3,310	$ 529	$ 79,792	$ (9,265)	$ (30,583)
Balance (in shares) at Mar. 31, 2018			52,965,797
Purchase of treasury stock	(2,618)					(2,618)
Net loss	(2,437)				(2,437)
Balance at Mar. 31, 2019	$ 38,728	3,310	$ 529	79,792	(11,702)	(33,201)
Balance (in shares) at Mar. 31, 2019	52,965,797		52,965,797
Net loss	$ (4,307)				(4,307)
Balance at Mar. 31, 2020	$ 34,421	$ 3,310	$ 529	$ 79,792	$ (16,009)	$ (33,201)
Balance (in shares) at Mar. 31, 2020	52,965,797		52,965,797