CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Accumulated Other Comprehensive Gain (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022		47,253
Beginning balance at Dec. 31, 2022	$ 192,272	$ 593,245	$ (978)	$ (399,995)
Increase (Decrease) in Shareholders' Equity
Net loss	(7,495)			(7,495)
Stock-based compensation expense	8,731	$ 8,731
Stock option exercises (in shares)		132
Stock option exercises	2,009	$ 2,009
Shares issued under the Employee Stock Purchase Plan (in shares)		11
Shares issued under the Employee Stock Purchase Plan	216	$ 216
Issuance of stock for restricted stock unit vesting (in shares)		183
Restricted stock withheld for employee tax remittance (in shares)		(72)
Restricted stock withheld for employee tax remittance	(2,097)	$ (2,097)
Unrealized (loss) gain on investments	342		342
Ending balance (in shares) at Mar. 31, 2023		47,507
Ending balance at Mar. 31, 2023	193,978	$ 602,104	(636)	(407,490)
Beginning balance (in shares) at Dec. 31, 2022		47,253
Beginning balance at Dec. 31, 2022	192,272	$ 593,245	(978)	(399,995)
Increase (Decrease) in Shareholders' Equity
Net loss	(12,515)
Unrealized (loss) gain on investments	357
Ending balance (in shares) at Jun. 30, 2023		47,616
Ending balance at Jun. 30, 2023	198,928	$ 612,059	(621)	(412,510)
Beginning balance (in shares) at Mar. 31, 2023		47,507
Beginning balance at Mar. 31, 2023	193,978	$ 602,104	(636)	(407,490)
Increase (Decrease) in Shareholders' Equity
Net loss	(5,020)			(5,020)
Stock-based compensation expense	8,761	$ 8,761
Stock option exercises (in shares)		68
Stock option exercises	889	$ 889
Shares issued under the Employee Stock Purchase Plan (in shares)		18
Shares issued under the Employee Stock Purchase Plan	384	$ 384
Issuance of stock for restricted stock unit vesting (in shares)		26
Restricted stock withheld for employee tax remittance (in shares)		(3)
Restricted stock withheld for employee tax remittance	(79)	$ (79)
Unrealized (loss) gain on investments	15		15
Ending balance (in shares) at Jun. 30, 2023		47,616
Ending balance at Jun. 30, 2023	$ 198,928	$ 612,059	(621)	(412,510)
Beginning balance (in shares) at Dec. 31, 2023	47,829	47,829
Beginning balance at Dec. 31, 2023	$ 225,952	$ 629,229	(100)	(403,177)
Increase (Decrease) in Shareholders' Equity
Net loss	(3,862)			(3,862)
Stock-based compensation expense	9,834	$ 9,834
Stock option exercises (in shares)		487
Stock option exercises	6,779	$ 6,779
Shares issued under the Employee Stock Purchase Plan (in shares)		9
Shares issued under the Employee Stock Purchase Plan	247	$ 247
Issuance of stock for restricted stock unit vesting (in shares)		265
Restricted stock withheld for employee tax remittance (in shares)		(101)
Restricted stock withheld for employee tax remittance	(4,909)	$ (4,909)
Unrealized (loss) gain on investments	(145)		(145)
Ending balance (in shares) at Mar. 31, 2024		48,489
Ending balance at Mar. 31, 2024	$ 233,896	$ 641,180	(245)	(407,039)
Beginning balance (in shares) at Dec. 31, 2023	47,829	47,829
Beginning balance at Dec. 31, 2023	$ 225,952	$ 629,229	(100)	(403,177)
Increase (Decrease) in Shareholders' Equity
Net loss	(8,544)
Unrealized (loss) gain on investments	$ (173)
Ending balance (in shares) at Jun. 30, 2024	48,862	48,862
Ending balance at Jun. 30, 2024	$ 242,977	$ 654,971	(273)	(411,721)
Beginning balance (in shares) at Mar. 31, 2024		48,489
Beginning balance at Mar. 31, 2024	233,896	$ 641,180	(245)	(407,039)
Increase (Decrease) in Shareholders' Equity
Net loss	(4,682)			(4,682)
Stock-based compensation expense	9,520	$ 9,520
Stock option exercises (in shares)		329
Stock option exercises	4,020	$ 4,020
Shares issued under the Employee Stock Purchase Plan (in shares)		14
Shares issued under the Employee Stock Purchase Plan	414	$ 414
Issuance of stock for restricted stock unit vesting (in shares)		34
Restricted stock withheld for employee tax remittance (in shares)		(4)
Restricted stock withheld for employee tax remittance	(163)	$ (163)
Unrealized (loss) gain on investments	$ (28)		(28)
Ending balance (in shares) at Jun. 30, 2024	48,862	48,862
Ending balance at Jun. 30, 2024	$ 242,977	$ 654,971	$ (273)	$ (411,721)