CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDER'S EQUITY (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2020	$ 16	$ 73,638	$ (2,809)	$ (62,947)	$ 7,898
Balance at beginning, shares at Dec. 31, 2020	15,906
Net income				148	148
Share-based compensation		20			20
Ending balance, value at Mar. 31, 2021	$ 16	73,658	(2,809)	(62,799)	8,066
Balance at ending, shares at Mar. 31, 2021	15,906
Beginning balance, value at Dec. 31, 2020	$ 16	73,638	(2,809)	(62,947)	7,898
Balance at beginning, shares at Dec. 31, 2020	15,906
Net income					872
Ending balance, value at Jun. 30, 2021	$ 16	73,675	(2,809)	(62,075)	8,807
Balance at ending, shares at Jun. 30, 2021	15,906
Beginning balance, value at Mar. 31, 2021	$ 16	73,658	(2,809)	(62,799)	8,066
Balance at beginning, shares at Mar. 31, 2021	15,906
Net income				724	724
Share-based compensation		17			17
Ending balance, value at Jun. 30, 2021	$ 16	73,675	(2,809)	(62,075)	8,807
Balance at ending, shares at Jun. 30, 2021	15,906
Beginning balance, value at Dec. 31, 2021	$ 16	73,686	(2,809)	(60,621)	10,272
Balance at beginning, shares at Dec. 31, 2021	15,906
Net income				(264)	(264)
Treasury shares purchased			(226)		(226)
Share-based compensation		57			57
Ending balance, value at Mar. 31, 2022	$ 16	73,743	(3,035)	(60,885)	9,839
Balance at ending, shares at Mar. 31, 2022	15,906
Beginning balance, value at Dec. 31, 2021	$ 16	73,686	(2,809)	(60,621)	10,272
Balance at beginning, shares at Dec. 31, 2021	15,906
Net income					(87)
Ending balance, value at Jun. 30, 2022	$ 16	73,757	(3,135)	(60,708)	9,930
Balance at ending, shares at Jun. 30, 2022	15,906
Beginning balance, value at Mar. 31, 2022	$ 16	73,743	(3,035)	(60,885)	9,839
Balance at beginning, shares at Mar. 31, 2022	15,906
Net income				177	177
Treasury shares purchased			(100)		(100)
Share-based compensation		14			14
Ending balance, value at Jun. 30, 2022	$ 16	$ 73,757	$ (3,135)	$ (60,708)	$ 9,930
Balance at ending, shares at Jun. 30, 2022	15,906