CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Equity Method Investee	ATM	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Equity Method Investee	Accumulated Other Comprehensive Gain (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2021	$ 169,651			$ 6	$ 593,784		$ (7)	$ (424,132)
Beginning balance, Shares at Dec. 31, 2021				57,150,274
Issuance of common stock from option exercises	1				1
Issuance of common stock from option exercises, Shares				293
Issuance of common stock pursuant to employee stock purchase plan	595				595
Issuance of common stock pursuant to employee stock purchase plan, Shares				226,453
Issuance of common stock from RSU vesting, Shares				106,890
Stock-based compensation	13,054	$ 79			13,054	$ 79
Other comprehensive loss	(397)						(397)
Net loss	(5,005)							(5,005)
Ending balance at Dec. 31, 2022	177,978			$ 6	607,513		(404)	(429,137)
Ending balance, Shares at Dec. 31, 2022				57,483,910
Issuance of common stock, net of discounts and issuance costs, Shares			0
Issuance of common stock from option exercises	16				16
Issuance of common stock from option exercises, Shares				26,166
Issuance of common stock pursuant to employee stock purchase plan	168				168
Issuance of common stock pursuant to employee stock purchase plan, Shares				133,817
Issuance of common stock from RSU vesting, Shares				373,519
Stock-based compensation	7,324	$ 67			7,324	$ 67
Other comprehensive loss	399						399
Net loss	(112,961)							(112,961)
Ending balance at Dec. 31, 2023	$ 72,991			$ 6	$ 615,088		$ (5)	$ (542,098)
Ending balance, Shares at Dec. 31, 2023				58,017,412