Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (89,218)	$ (66,221)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	5,361	5,137
Accretion of marketable securities	(1,072)
Non-cash interest expense related to note payable	757	260
Stock-based compensation	5,208	4,551
Changes in current assets and liabilities:
Prepaid expenses and other assets	985	(410)
Right-of-use assets and lease liabilities, net	935	(2,047)
Accounts payable	(52)	528
Accrued expense and other liabilities	3,853	732
Deferred revenue	11,885	(9,033)
Net cash used in operating activities	(61,358)	(66,503)
Cash flows from investing activities:
Purchases of property and equipment	(3,146)	(4,225)
Purchases of marketable securities	(77,613)
Proceeds from maturities of marketable securities	20,000
Net cash used in investing activities	(60,759)	(4,225)
Cash flows from financing activities:
Proceeds from issuance of common stock, net of offering costs	42,414
Proceeds from issuance of pre-funded warrants, net of offering costs	92,318
Issuance of common stock under ESPP plan		193
Proceeds from exercise of stock options	711	133
Proceeds from issuance of term loan, net of issuance costs paid to lender		29,354
Payments of debt issuance costs		(324)
Net cash provided by financing activities	135,443	29,356
Net increase (decrease) in cash, cash equivalents and restricted cash	13,326	(41,372)
Cash, cash equivalents, and restricted cash - beginning of year	125,064	166,436
Cash, cash equivalents, and restricted cash - end of year	138,390	125,064
Summary of cash, cash equivalents and restricted cash reported within the consolidated balance sheets:
Cash and cash equivalents	133,359	120,027
Restricted cash	5,031	5,037
Total cash, cash equivalents, and restricted cash	138,390	125,064
Supplemental disclosure of cash flow information:
Cash paid for interest	3,002	660
Supplemental disclosure of non-cash investing and financing activities:
Lease liability arising from obtaining right-of-use asset	6,214	53,541
Purchase of property and equipment in accounts payable and accrued liabilities	$ 301	$ 444