Condensed Consolidated Statements of Stockholders’ Equity (Unaudited) - USD ($) $ in Thousands	Common stock	Treasury stock	Additional paid-in capital	Accum other comp loss	Accum deficit	Total
Balance at Dec. 31, 2020	$ 29	$ (15,147)	$ 376,456	$ 0	$ (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)
Balance at Dec. 31, 2020	$ 29	$ (15,147)	376,456	0	(331,403)	29,935
Balance (in Shares) at Dec. 31, 2020	2,971,283	(549,028)
Net income (loss)						(926)
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)
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)
Stock-based compensation			30			30
Common stock issued, net of shares withheld for employee taxes			(20)			(20)
Common stock issued, net of shares withheld for employee taxes (in Shares)	6,340
Net income (loss)					(119)	(119)
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)
Balance at Dec. 31, 2021	$ 29	$ (15,147)	376,640	(1)	(332,133)	29,388
Balance (in Shares) at Dec. 31, 2021	2,995,680	(549,028)
Stock-based compensation			18			18
Unrealized gain (loss) on investments, net of tax				(1)		(1)
Net income (loss)					494	494
Balance at Mar. 31, 2022	$ 29	$ (15,147)	376,658	(2)	(331,639)	29,899
Balance (in Shares) at Mar. 31, 2022	2,995,680	(549,028)
Balance at Dec. 31, 2021	$ 29	$ (15,147)	376,640	(1)	(332,133)	29,388
Balance (in Shares) at Dec. 31, 2021	2,995,680	(549,028)
Net income (loss)						1,031
Balance at Jun. 30, 2022	$ 29	$ (15,147)	376,677	(1)	(331,102)	30,456
Balance (in Shares) at Jun. 30, 2022	2,995,680	(549,028)
Balance at Mar. 31, 2022	$ 29	$ (15,147)	376,658	(2)	(331,639)	29,899
Balance (in Shares) at Mar. 31, 2022	2,995,680	(549,028)
Stock-based compensation			19			19
Unrealized gain (loss) on investments, net of tax				1		1
Net income (loss)					537	537
Balance at Jun. 30, 2022	$ 29	$ (15,147)	$ 376,677	$ (1)	$ (331,102)	$ 30,456
Balance (in Shares) at Jun. 30, 2022	2,995,680	(549,028)