Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows used in operating activities
Net loss	$ (64,465)	$ (37,685)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization expense	1,108	975
Non-cash lease expense	419	335
Stock-based compensation expense	5,211	4,091
Change in fair value of common stock warrant liability	575	(7,200)
Change in fair value of earnout liability	(18)	(5,725)
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	767	312
Other receivables	663	(663)
Other non-current assets	(584)	(114)
Accounts payable	2,381	(2,151)
Accrued expenses and other current liabilities	2,821	836
Operating lease liability	(865)	(589)
Other non-current liabilities	(80)	1,720
Net cash used in operating activities	(52,067)	(45,858)
Cash flows used in investing activities
Purchases of property and equipment	(267)	(576)
Net cash used in investing activities	(267)	(576)
Cash flows from financing activities
Proceeds from issuance of common stock through ATM and underwritten offerings, net	101,479
Proceeds from exercise of common stock options	388	27
Proceeds from issuance of common stock pursuant to Employee Stock Purchase Plan	64	28
Taxes withheld and paid related to net settlement of equity awards	(960)
Net cash provided by financing activities	100,971	55
Net increase (decrease) in cash, cash equivalents and restricted cash	48,637	(46,379)
Cash, cash equivalents and restricted cash at beginning of the year	38,667	85,046
Cash, cash equivalents and restricted cash at end of the year	87,304	38,667
Supplemental and non-cash items reconciliations:
Reclassification of common stock warrant liability into additional paid-in capital	725
Right-of-use asset obtained in exchange for lease liabilities		1,074
Non-cash leasehold improvements		(281)
Letter of credit issued in connection with lease recognition		$ 72