Condensed Consolidated Statements of Stockholders' (Deficit) Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2022	$ 949	$ 1	$ 402,389	$ (401,441)
Balance, shares at Dec. 31, 2022		63,207,507
Stock-based compensation	1,675		1,675
Issuance of common stock, upon vesting and settlement of restricted stock units, net, shares		229,922
Issuance of common stock under ESPP	50		50
Issuance of common stock under ESPP, shares		35,920
Net loss	(17,622)			(17,622)
Balance at Mar. 31, 2023	(14,948)	$ 1	404,114	(419,063)
Balance, shares at Mar. 31, 2023		63,473,349
Balance at Dec. 31, 2023	$ 74,937	$ 2	587,942	(513,007)
Balance, shares at Dec. 31, 2023	186,960,193	186,960,193
Stock-based compensation	$ 3,198		3,198
Issuance of common stock, upon vesting and settlement of restricted stock units, net, shares		11,282
Issuance of common stock under ESPP	26		26
Issuance of common stock under ESPP, shares		46,800
Loss on instrument-specific credit risk	(251)				$ (251)
Net loss	(24,061)			(24,061)
Balance at Mar. 31, 2024	$ 53,849	$ 2	$ 591,166	$ (537,068)	$ (251)
Balance, shares at Mar. 31, 2024	187,018,275	187,018,275