CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock
Balance at Mar. 31, 2017	$ 56,927,000	$ 3,310,000	$ 529,000	$ 79,792,000	$ (2,414,000)	$ (24,290,000)
Balance (in shares) at Mar. 31, 2017			52,965,797
Purchase of treasury stock	(6,293,000)					(6,293,000)
Net loss	(6,851,000)				(6,851,000)
Balance at Mar. 31, 2018	$ 43,783,000	3,310,000	$ 529,000	79,792,000	(9,265,000)	(30,583,000)
Balance (in shares) at Mar. 31, 2018	52,965,797		52,965,797
Purchase of treasury stock	$ (2,618,000)		$ (2,617,858)			(2,618,000)
Net loss	(2,437,000)				(2,437,000)
Balance at Mar. 31, 2019	$ 38,728,000	$ 3,310,000	$ 529,000	$ 79,792,000	$ (11,702,000)	$ (33,201,000)
Balance (in shares) at Mar. 31, 2019	52,965,797		52,965,797