CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common stock and additional paid-in capital	Treasury Stock	Accumulated other comprehensive income (loss)	Retained Earnings
Beginning Balance (in shares) at Dec. 31, 2020	2,685	3,672
Beginning Balance (in shares) at Dec. 31, 2020			(987)
Beginning Balance at Dec. 31, 2020	$ 34,280	$ 486,829	$ (15,325)	$ 526	$ (437,750)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation (in shares)		3
Stock-based compensation		$ 302
Purchase of treasury stock (in shares)			0
Purchase of treasury stock			$ (2)
Purchase of restricted stock from employees (in shares)			0
Purchase of restricted stock from employees			$ 0
Other comprehensive income (loss)				(226)
Net income (loss)	$ (203)				(203)
Ending Balance (in shares) at Mar. 31, 2021	2,688	3,675
Ending Balance (in shares) at Mar. 31, 2021			(987)
Ending Balance at Mar. 31, 2021	$ 34,151	$ 487,131	$ (15,327)	300	(437,953)
Beginning Balance (in shares) at Dec. 31, 2021	2,707	3,694
Beginning Balance (in shares) at Dec. 31, 2021	987		(987)
Beginning Balance at Dec. 31, 2021	$ 39,316	$ 489,253	$ (15,329)	(85)	(434,523)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation (in shares)		105
Stock-based compensation		$ 546
Purchase of treasury stock (in shares)			0
Purchase of treasury stock			$ 0
Purchase of restricted stock from employees (in shares)			(7)
Purchase of restricted stock from employees			$ (226)
Other comprehensive income (loss)				137
Net income (loss)	$ 3,019				3,019
Ending Balance (in shares) at Mar. 31, 2022	2,805	3,799
Ending Balance (in shares) at Mar. 31, 2022	994		(994)
Ending Balance at Mar. 31, 2022	$ 42,792	$ 489,799	$ (15,555)	$ 52	$ (431,504)