Condensed Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Common Stock	Treasury stock	Additional paid-in capital	Accum other comp loss	Accum deficit	Total
Balance at Dec. 31, 2019	$ 29	$ (12,749)	$ 376,306	$ (1)	$ (330,340)	$ 33,245
Balance (in Shares) at Dec. 31, 2019	2,955,253	(253,082)
Stock-based compensation			13			13
Purchase of treasury stock, at cost		$ (1,868)				(1,868)
Purchase of treasury stock, at cost (in Shares)		(229,778)
Net income (loss)					(498)	(498)
Balance at Jun. 30, 2020	$ 29	$ (14,617)	376,319	(1)	(330,838)	30,892
Balance (in Shares) at Jun. 30, 2020	2,955,253	(482,860)
Stock-based compensation			33			33
Stock-based compensation (in Shares)	3,597
Purchase of treasury stock, at cost		$ (531)				(531)
Purchase of treasury stock, at cost (in Shares)		(66,168)
Net income (loss)					(196)	(196)
Balance at Sep. 30, 2020	$ 29	$ (15,148)	376,352	(1)	(331,034)	30,198
Balance (in Shares) at Sep. 30, 2020	2,958,850	(549,028)
Balance at Dec. 31, 2020	$ 29	$ (15,147)	376,456		(331,403)	29,935
Balance (in Shares) at Dec. 31, 2020	2,971,283	(549,028)
Stock-based compensation			341			341
Common stock issued, net of shares withheld for employee taxes			(162)			(162)
Common stock issued, net of shares withheld for employee taxes (in Shares)	16,600
Net income (loss)					(807)	(807)
Balance at Mar. 31, 2021	$ 29	$ (15,147)	376,635		(332,210)	29,307
Balance (in Shares) at Mar. 31, 2021	2,987,883	(549,028)
Common stock issued, net of shares withheld for employee taxes			10			10
Common stock issued, net of shares withheld for employee taxes (in Shares)	6,340
Net income (loss)					(120)	(120)
Balance at Jun. 30, 2021	$ 29	$ (15,147)	376,645		(332,329)	29,198
Balance (in Shares) at Jun. 30, 2021	2,994,223	(549,028)
Common stock issued, net of shares withheld for employee taxes
Common stock issued, net of shares withheld for employee taxes (in Shares)	486
Net income (loss)					120	120
Balance at Sep. 30, 2021	$ 29	$ (15,147)	$ 376,645		$ (332,209)	$ 29,318
Balance (in Shares) at Sep. 30, 2021	2,994,709	(549,028)