CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' 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, 2019	$ 16	$ 73,521	$ (2,284)	$ (56,890)	$ 14,363
Balance at beginning, shares at Dec. 31, 2019	15,906
Net income				(637)	(637)
Treasury shares purchased			(524)		(524)
Share-based compensation		50			50
Ending balance, value at Mar. 31, 2020	$ 16	73,571	(2,808)	(57,527)	13,252
Balance at ending, shares at Mar. 31, 2020	15,906
Beginning balance, value at Dec. 31, 2019	$ 16	73,521	(2,284)	(56,890)	14,363
Balance at beginning, shares at Dec. 31, 2019	15,906
Net income					(6,177)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					(6,172)
Ending balance, value at Sep. 30, 2020	$ 16	73,634	(2,809)	(63,067)	7,774
Balance at ending, shares at Sep. 30, 2020	15,756
Beginning balance, value at Mar. 31, 2020	$ 16	73,571	(2,808)	(57,527)	13,252
Balance at beginning, shares at Mar. 31, 2020	15,906
Net income				(5,290)	(5,290)
Share-based compensation		24			24
Ending balance, value at Jun. 30, 2020	16	73,595	(2,808)	(62,817)	7,986
Restricted stock awards forfeited
Balance at ending, shares at Jun. 30, 2020	15,756
Restricted stock awards forfeited, shares	(150)
Net income				(250)	(250)
Treasury shares purchased			(1)		(1)
Share-based compensation		39			39
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					(250)
Ending balance, value at Sep. 30, 2020	$ 16	73,634	(2,809)	(63,067)	7,774
Balance at ending, shares at Sep. 30, 2020	15,756
Beginning balance, value at Dec. 31, 2020	$ 16	73,638	(2,809)	(62,947)	7,898
Balance at beginning, shares at Dec. 31, 2020	15,756
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	15,756
Beginning balance, value at Dec. 31, 2020	$ 16	73,638	(2,809)	(62,947)	7,898
Balance at beginning, shares at Dec. 31, 2020	15,756
Net income					1,204
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					1,219
Ending balance, value at Sep. 30, 2021	$ 16	73,684	(2,809)	(61,743)	9,148
Balance at ending, shares at Sep. 30, 2021	15,756
Beginning balance, value at Mar. 31, 2021	$ 16	73,658	(2,809)	(62,799)	8,066
Balance at beginning, shares at Mar. 31, 2021	15,756
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	15,756
Net income				332	332
Share-based compensation		9			9
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					337
Ending balance, value at Sep. 30, 2021	$ 16	$ 73,684	$ (2,809)	$ (61,743)	$ 9,148
Balance at ending, shares at Sep. 30, 2021	15,756