CONSOLIDATED STATEMENTS OF SHAREHOLDERS EQUITY (Unaudited Consolidated Condensed) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
Balance at beginning at Dec. 31, 2019		$ 381	$ 101,886	$ (100,756)	$ 1,511
Balance at beginning (in shares) at Dec. 31, 2019		38,136,792
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Stock-based compensation			52		52
Net income (loss)				(167)	(167)
Balance at ending at Mar. 31, 2020		$ 381	101,938	(100,923)	1,396
Balance at ending (in shares) at Mar. 31, 2020		38,136,792
Balance at beginning at Dec. 31, 2020		$ 382	102,117	(99,767)	2,732
Balance at beginning (in shares) at Dec. 31, 2020		38,221,292
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Stock-based compensation			42		42
Net income (loss)				1,310	1,310
Balance at ending at Mar. 31, 2021		$ 382	$ 102,159	$ (98,457)	$ 4,084
Balance at ending (in shares) at Mar. 31, 2021		38,221,292