CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock Outstanding	Additional Paid-in Capital	Treasury Stock	Retained Earnings	AOCI Attributable to Parent	Total
Balances (in shares) at Dec. 31, 2019	32,503		9,294
Balances at Dec. 31, 2019	$ 5	$ 325,197	$ (91,695)	$ (35,870)	$ (1,480)	$ 196,157
Issuance of common stock, net of issuance of $0.1 million	$ 1	65,077				65,078
Issuance of common stock, net of issuance of $0.1 million (in shares)	3,307
Issuance of common stock in connection with employee stock purchase plan (in shares)	183
Issuance of common stock in connection with employee stock purchase plan		1,670				$ 1,670
Issuance of common stock in connection with exercise of options (in shares)	246					246
Issuance of common stock in connection with exercise of options		2,570				$ 2,570
Vesting of restricted stock units (in shares)	611
Purchases of treasury stock in connection with tax withholdings on restricted stock grants (in shares)			256
Purchases of treasury stock in connection with tax withholdings on restricted stock grants			$ (4,520)			(4,520)
Stock-based compensation expense		12,659				12,659
Comprehensive income (loss)				(40,363)	1,255	(39,108)
Balances (in shares) at Dec. 31, 2020	36,850		9,550
Balances at Dec. 31, 2020	$ 6	407,173	$ (96,215)	(76,233)	(225)	234,506
Issuance of common stock in connection with employee stock purchase plan (in shares)	109
Issuance of common stock in connection with employee stock purchase plan		1,035				$ 1,035
Issuance of common stock in connection with exercise of options (in shares)	216					216
Issuance of common stock in connection with exercise of options		1,930				$ 1,930
Vesting of restricted stock units (in shares)	487
Purchases of treasury stock in connection with tax withholdings on restricted stock grants (in shares)			202
Purchases of treasury stock in connection with tax withholdings on restricted stock grants			$ (3,967)			(3,967)
Repurchase of common stock (in shares)	(251)		251
Repurchase of common stock			$ (4,523)			(4,523)
Stock-based compensation expense		12,931				12,931
Comprehensive income (loss)				(21,488)	(839)	(22,327)
Balances (in shares) at Dec. 31, 2021	37,411		10,003
Balances at Dec. 31, 2021	$ 6	423,069	$ (104,705)	(97,721)	(1,064)	219,585
Balances (in shares) at Dec. 31, 2020	36,850		9,550
Balances at Dec. 31, 2020	$ 6	407,173	$ (96,215)	(76,233)	(225)	234,506
Balances (in shares) at Dec. 31, 2022	37,431		11,182
Balances at Dec. 31, 2022	$ 6	447,415	$ (133,709)	(101,150)	(2,550)	210,012
Balances (in shares) at Dec. 31, 2021	37,411		10,003
Balances at Dec. 31, 2021	$ 6	423,069	$ (104,705)	(97,721)	(1,064)	219,585
Issuance of common stock in connection with employee stock purchase plan (in shares)	187
Issuance of common stock in connection with employee stock purchase plan		3,011				$ 3,011
Issuance of common stock in connection with exercise of options (in shares)	150					150
Issuance of common stock in connection with exercise of options		1,686				$ 1,686
Vesting of restricted stock units (in shares)	616
Purchases of treasury stock in connection with tax withholdings on restricted stock grants (in shares)			246
Purchases of treasury stock in connection with tax withholdings on restricted stock grants			$ (6,533)			(6,533)
Repurchase of common stock (in shares)	(933)		933
Repurchase of common stock			$ (22,471)			(22,471)
Stock-based compensation expense		(19,649)				(19,649)
Comprehensive income (loss)				(3,429)	(1,486)	(4,915)
Balances (in shares) at Dec. 31, 2022	37,431		11,182
Balances at Dec. 31, 2022	$ 6	$ 447,415	$ (133,709)	$ (101,150)	$ (2,550)	$ 210,012