CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Treasury Stock
Beginning balance at Dec. 31, 2020	$ 50,977	$ 383	$ 365,503	$ (20,215)	$ (293,998)	$ (696)
Beginning balance (in shares) at Dec. 31, 2020		38,179,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(3,330)				(3,330)
Share-based compensation expense	3,179		3,179
Issuance in connection with the exercise of stock options	366		366
Issuance in connection with the exercise of stock options (in shares)		29,000
Issuance of common stock upon vesting of restricted stock units	0	$ 4	(4)
Issuance of common stock upon vesting of restricted stock units (in shares)		365,000
Effect of shares withheld to cover taxes	(4,520)		(4,520)
Total other comprehensive income	2,572			2,572
Ending balance at Mar. 31, 2021	49,244	$ 387	364,524	(17,643)	(297,328)	(696)
Ending balance (in shares) at Mar. 31, 2021		38,573,000
Beginning balance at Dec. 31, 2020	50,977	$ 383	365,503	(20,215)	(293,998)	(696)
Beginning balance (in shares) at Dec. 31, 2020		38,179,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	6,829
Total other comprehensive income	3,857
Ending balance at Jun. 30, 2021	63,892	$ 389	367,726	(16,358)	(287,169)	(696)
Ending balance (in shares) at Jun. 30, 2021		38,722,000
Beginning balance at Mar. 31, 2021	49,244	$ 387	364,524	(17,643)	(297,328)	(696)
Beginning balance (in shares) at Mar. 31, 2021		38,573,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	10,159				10,159
Share-based compensation expense	3,239		3,239
Issuance in connection with the exercise of stock options	5	$ 1	4
Issuance in connection with the exercise of stock options (in shares)		80,000
Issuance of common stock upon vesting of restricted stock units	0	$ 1	(1)
Issuance of common stock upon vesting of restricted stock units (in shares)		69,000
Effect of shares withheld to cover taxes	(40)		(40)
Total other comprehensive income	1,285			1,285
Ending balance at Jun. 30, 2021	63,892	$ 389	367,726	(16,358)	(287,169)	(696)
Ending balance (in shares) at Jun. 30, 2021		38,722,000
Beginning balance at Dec. 31, 2021	$ 110,171	$ 389	373,644	(11,150)	(252,016)	(696)
Beginning balance (in shares) at Dec. 31, 2021	38,748,617	38,749,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ (7,977)				(7,977)
Share-based compensation expense	2,903		2,903
Issuance of common stock upon vesting of restricted stock units	0	$ 3	(3)
Issuance of common stock upon vesting of restricted stock units (in shares)		324,000
Effect of shares withheld to cover taxes	(3,452)		(3,452)
Total other comprehensive income	6,908			6,908
Ending balance at Mar. 31, 2022	108,553	$ 392	373,092	(4,242)	(259,993)	(696)
Ending balance (in shares) at Mar. 31, 2022		39,073,000
Beginning balance at Dec. 31, 2021	$ 110,171	$ 389	373,644	(11,150)	(252,016)	(696)
Beginning balance (in shares) at Dec. 31, 2021	38,748,617	38,749,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 2,140
Total other comprehensive income	9,820
Ending balance at Jun. 30, 2022	$ 125,208	$ 393	376,717	(1,330)	(249,876)	(696)
Ending balance (in shares) at Jun. 30, 2022	39,133,858	39,134,000
Beginning balance at Mar. 31, 2022	$ 108,553	$ 392	373,092	(4,242)	(259,993)	(696)
Beginning balance (in shares) at Mar. 31, 2022		39,073,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	10,117				10,117
Share-based compensation expense	3,601		3,601
Issuance in connection with the exercise of stock options	51		51
Issuance in connection with the exercise of stock options (in shares)		9,000
Issuance of common stock upon vesting of restricted stock units	0	$ 1	(1)
Issuance of common stock upon vesting of restricted stock units (in shares)		52,000
Effect of shares withheld to cover taxes	(26)		(26)
Total other comprehensive income	2,912			2,912
Ending balance at Jun. 30, 2022	$ 125,208	$ 393	$ 376,717	$ (1,330)	$ (249,876)	$ (696)
Ending balance (in shares) at Jun. 30, 2022	39,133,858	39,134,000