CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Accumulated deficit	Accumulated other comprehensive income (loss)	Treasury stock
Beginning Balance (in shares) at Dec. 31, 2021		3,694,000
Beginning Balance at Dec. 31, 2021	$ 39,316	$ 4	$ 489,249	$ (434,523)	$ (85)	$ (15,329)
Beginning Balance, treasury stock (in shares) at Dec. 31, 2021						(987,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,129			7,129
Other comprehensive income (loss), translation adjustments	$ (1,554)				(1,554)
Purchase of treasury stock (in shares)	(32,615)					(33,000)
Purchases of treasury stock	$ (1,131)					$ (1,131)
Purchase of restricted stock from employees (in shares)						(9,000)
Purchase of restricted stock from employees	(286)					$ (286)
Stock-based compensation and vesting of restricted stock units (in shares)		129,000
Stock-based compensation and vesting of restricted stock units	$ 2,318		2,318
Ending Balance, treasury stock (in shares) at Dec. 31, 2022	1,029,000					(1,029,000)
Ending Balance (in shares) at Dec. 31, 2022	2,794,000	3,823,000
Ending Balance at Dec. 31, 2022	$ 45,792	$ 4	491,567	(427,394)	(1,639)	$ (16,746)
Ending Balance (Cumulative-effect adjustment from adoption of ASU 2016-13, Credit Losses) at Dec. 31, 2022	(51)			(51)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,198			2,198
Other comprehensive income (loss), translation adjustments	$ 349				349
Purchase of treasury stock (in shares)	(48,234)					(48,000)
Purchases of treasury stock	$ (959)					$ (959)
Purchase of restricted stock from employees (in shares)						(12,000)
Purchase of restricted stock from employees	(244)					$ (244)
Stock-based compensation and vesting of restricted stock units (in shares)		73,000
Stock-based compensation and vesting of restricted stock units	$ 1,469		1,469
Ending Balance, treasury stock (in shares) at Dec. 31, 2023	1,089,000					(1,089,000)
Ending Balance (in shares) at Dec. 31, 2023	2,807,000	3,896,000
Ending Balance at Dec. 31, 2023	$ 48,554	$ 4	$ 493,036	$ (425,247)	$ (1,290)	$ (17,949)