CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock
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
Net loss	(2,851)				(2,851)
Balance at Dec. 31, 2019	35,877	3,310	$ 529	79,792	(14,553)	(33,201)
Balance (in shares) at Dec. 31, 2019			52,965,797
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
Net loss	$ (3,026)				(3,026)
Balance at Dec. 31, 2020	$ 31,395	$ 3,310	$ 529	$ 79,792	$ (19,035)	$ (33,201)
Balance (in shares) at Dec. 31, 2020	52,965,797		52,965,797