Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands		Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]
Beginning balance at Dec. 31, 2021		$ 222,757	$ 57	$ (199,796)	$ 383,436	$ 298	$ 38,762
Beginning balance, shares at Dec. 31, 2021			57,144,740	27,510,842
Issuance of common stock from restricted stock awards, shares			122,571
Purchase of common stock through stock buyback		(323)		$ (323)
Purchase of common stock through stock buyback, shares				4,614
Impact of net settlements		(4,382)			(4,382)
Impact of net settlements, shares			1,340	1,340
Stock-based compensation expense	[1]	18,744			18,744
Comprehensive income:
Unrealized gain (loss) on investments		(69)				(69)
Unrealized gain (loss) on foreign currency exchange		(2,695)				(2,695)
Net income		7,164					7,164
Ending balance at Mar. 31, 2022		241,196	$ 57	$ (200,119)	397,798	(2,466)	45,926
Ending balance, shares at Mar. 31, 2022			57,268,651	27,516,796
Beginning balance at Dec. 31, 2022		$ 217,474	$ 58	$ (278,876)	425,458	(9,537)	80,371
Beginning balance, shares at Dec. 31, 2022			57,919,501	28,896,408
Issuance of common stock from exercise of options, shares		2,500	2,500
Issuance of common stock from exercise of options		$ 18			18
Issuance of common stock from restricted stock awards, shares			91,152
Purchase of common stock through stock buyback		(25,000)		$ (25,000)
Purchase of common stock through stock buyback, shares				581,295
Impact of net settlements		(177)			(177)
Impact of net settlements, shares			912	912
Excise Tax on repurchased shares		(206)			(206)
Stock-based compensation expense	[1]	14,176			14,176
Comprehensive income:
Unrealized gain (loss) on investments		63				63
Unrealized gain (loss) on foreign currency exchange		2,029				2,029
Net income		1,645					1,645
Ending balance at Mar. 31, 2023		$ 210,022	$ 58	$ (303,876)	$ 439,269	$ (7,445)	$ 82,016
Ending balance, shares at Mar. 31, 2023			58,014,065	29,478,615

[1] Includes $1.9 and $9.1 million of accrued compensation expense expensed in previous year for the three months ended March 31, 2023 and 2022, respectively.