CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY - USD ($) $ in Thousands	Total	Common Stock Issued	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit
Balance beginning of period (in shares) at Dec. 31, 2021		112,703,926
Balance, beginning of period at Dec. 31, 2021	$ 82	$ 113	$ 165,695	$ (4,017)	$ (161,709)
Treasury stock, beginning balance (in shares) at Dec. 31, 2021				778,710
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	8,426		8,426
Exercise of stock options (in shares)		84,096		150,238
Exercise of stock options	437		(829)	$ 1,266
Employee stock purchase plan	0
Issuance of restricted stock (in shares)		821,252		880,749
Issuance of restricted stock	0	$ 1	(3,960)	$ 3,959
Restricted stock shares canceled/forfeited (in shares)				3,502
Restricted stock shares canceled/forfeited	0		20	$ (20)
Shares repurchased for tax withholding (in shares)				249,778
Shares repurchased for tax withholding	(1,191)			$ (1,191)
Net income (loss)	(21,357)				(21,357)
Balance end of period (in shares) at Jun. 30, 2022		113,609,274
Balance, end of period at Jun. 30, 2022	(13,603)	$ 114	169,352	$ (3)	(183,066)
Treasury stock, ending balance (in shares) at Jun. 30, 2022				1,003
Balance beginning of period (in shares) at Mar. 31, 2022		113,525,178
Balance, beginning of period at Mar. 31, 2022	(7,434)	$ 114	165,490	$ (840)	(172,198)
Treasury stock, beginning balance (in shares) at Mar. 31, 2022				172,768
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	4,428		4,428
Exercise of stock options (in shares)		84,096		25,904
Exercise of stock options	271		143	$ 128
Issuance of restricted stock (in shares)				148,696
Issuance of restricted stock	0		(723)	$ 723
Restricted stock shares canceled/forfeited (in shares)				2,835
Restricted stock shares canceled/forfeited	0		14	$ (14)
Net income (loss)	(10,868)				(10,868)
Balance end of period (in shares) at Jun. 30, 2022		113,609,274
Balance, end of period at Jun. 30, 2022	$ (13,603)	$ 114	169,352	$ (3)	(183,066)
Treasury stock, ending balance (in shares) at Jun. 30, 2022				1,003
Balance beginning of period (in shares) at Dec. 31, 2022	113,705,447	113,705,447
Balance, beginning of period at Dec. 31, 2022	$ (17,988)	$ 114	173,804	$ 0	(191,906)
Treasury stock, beginning balance (in shares) at Dec. 31, 2022				0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	$ 8,405		8,405
Exercise of stock options (in shares)	4,334	4,334
Exercise of stock options	$ 20		20
Employee stock purchase plan (in shares)		235,419
Employee stock purchase plan	680		680
Issuance of restricted stock (in shares)		2,163,925		62,255
Issuance of restricted stock	0	$ 2	(195)	$ 193
Restricted stock shares canceled/forfeited (in shares)				62,255
Restricted stock shares canceled/forfeited	0		193	$ (193)
Net income (loss)	$ (3,783)				(3,783)
Balance end of period (in shares) at Jun. 30, 2023	116,109,125	116,109,125
Balance, end of period at Jun. 30, 2023	$ (12,666)	$ 116	182,907	$ 0	(195,689)
Treasury stock, ending balance (in shares) at Jun. 30, 2023				0
Balance beginning of period (in shares) at Mar. 31, 2023		115,380,542
Balance, beginning of period at Mar. 31, 2023	(17,946)	$ 115	178,829	$ (1)	(196,889)
Treasury stock, beginning balance (in shares) at Mar. 31, 2023				334
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	4,060		4,060
Exercise of stock options (in shares)		4,334
Exercise of stock options	20		20
Issuance of restricted stock (in shares)		724,249		4,485
Issuance of restricted stock	0	$ 1	(16)	$ 15
Restricted stock shares canceled/forfeited (in shares)				4,151
Restricted stock shares canceled/forfeited	0		14	$ (14)
Net income (loss)	$ 1,200				1,200
Balance end of period (in shares) at Jun. 30, 2023	116,109,125	116,109,125
Balance, end of period at Jun. 30, 2023	$ (12,666)	$ 116	$ 182,907	$ 0	$ (195,689)
Treasury stock, ending balance (in shares) at Jun. 30, 2023				0