CONSOLIDATED STATEMENTS OF CHANGES IN MEZZANINE EQUITY AND SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	At-the-market Offering	Private Placement	Common stock	Common stock At-the-market Offering	Common stock Private Placement	Additional paid-in capital	Additional paid-in capital At-the-market Offering	Additional paid-in capital Private Placement	Accumulated other comprehensive income	Accumulated deficit
Beginning balance (in shares) at Dec. 31, 2021	0
Beginning balance at Dec. 31, 2021	$ 0
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of convertible preferred stock, net of issuance costs (in shares)	3,000
Issuance of convertible preferred stock, net of issuance costs	$ 211
Ending balance (in shares) at Dec. 31, 2022	3,000
Ending balance at Dec. 31, 2022	$ 211
Beginning balance (shares) at Dec. 31, 2021				2,976,541
Beginning balance at Dec. 31, 2021	48,636			$ 5			$ 688,156			$ 0	$ (639,525)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification due to reverse stock split	0			$ (5)			5
Vesting of restricted stock units, net of withholding for tax and shares issued under employee share purchase plan (in shares)				16,749
Vesting of restricted stock units, net of withholding for tax, and shares issued under employee share purchase plan	9						9
Stock-based compensation	4,297						4,297
Issuance of common stock, net of issuance costs (in shares)					143,770
Issuance of common stock, net of issuance costs		$ 1,470						$ 1,470
Issuance of equity line of credit commitment shares (in shares)				92,644
Unrealized gains from marketable securities	0
Net income (Loss)	$ (23,210)										(23,210)
Ending balance (shares) at Dec. 31, 2022	3,229,704			3,229,704
Ending balance at Dec. 31, 2022	$ 31,202			$ 0			693,937			0	(662,735)
Increase (Decrease) in Temporary Equity [Roll Forward]
Redemption of convertible preferred stock (in shares)	(3,000)
Redemption of convertible preferred stock	$ (211)
Ending balance (in shares) at Dec. 31, 2023	0
Ending balance at Dec. 31, 2023	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock units, net of withholding for tax and shares issued under employee share purchase plan (in shares)				50,214
Vesting of restricted stock units, net of withholding for tax, and shares issued under employee share purchase plan	(18)						(18)
Stock-based compensation	3,305						3,305
Issuance of common stock, net of issuance costs (in shares)					34,589
Issuance of common stock, net of issuance costs		$ 156						$ 156
Redemption of convertible preferred stock	(149)										(149)
Issuance of common stock and pre-funded warrants, under Private Placement, net of $5,486 of issuance costs (in shares)						10,652,543
Issuance of common stock and pre-funded warrants in Private Placement, net of $5,486 in issuance costs			$ 82,665			$ 1			$ 82,664
Cashless exercise of pre-funded warrants (in shares)				131,838
Unrealized gains from marketable securities	26									26
Net income (Loss)	$ (28,452)										(28,452)
Ending balance (shares) at Dec. 31, 2023	14,098,888			14,098,888
Ending balance at Dec. 31, 2023	$ 88,735			$ 1			$ 780,044			$ 26	$ (691,336)