CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 31, 2018	$ 7,600	$ 6	$ 293	$ 284,751	$ (277,373)	$ (77)
Begining Balance (in shares) at Dec. 31, 2018		569	29,253,278
Stock-based compensation expense	71			71
Net income	612				612
Ending Balance at Mar. 31, 2019	8,283	$ 6	$ 293	284,822	(276,761)	(77)
Ending Balance (in shares) at Mar. 31, 2019		569	29,253,278
Beginning Balance at Dec. 31, 2019	11,847	$ 6	$ 293	285,099	(273,474)	(77)
Begining Balance (in shares) at Dec. 31, 2019		568	29,339,101
Issuance of common stock from stock option awards	$ (2)		$ 1	(3)
Issuance of common stock from stock options awards, shares	43,875		19,805
Stock-based compensation expense	$ 75			75
Net income	38				38
Ending Balance at Mar. 31, 2020	$ 11,958	$ 6	$ 294	$ 285,171	$ (273,436)	$ (77)
Ending Balance (in shares) at Mar. 31, 2020		568	29,358,906