Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 135,303	$ 134,343
Prepaid expenses and other current assets	2,940	2,677
Other receivables	545	1,350
Total current assets	138,788	138,370
Property and equipment, net	7,092	7,958
Restricted cash and cash equivalents, net of current portion	1,211	21,023
Operating lease right of use asset	6,347	6,888
Other assets	265	594
Total assets	153,703	174,833
Current liabilities:
Accounts payable	1,467	1,336
Accrued expenses and other current liabilities	8,701	8,860
Operating lease liability, current	1,274	1,608
Deferred revenue, current	0	907
Note payable, current	0	6,667
Total current liabilities	11,442	19,378
Operating lease liability, net of current portion	10,239	10,992
Deferred revenue, net of current portion	0	433
Note payable, net of discount, issuance costs, and current portion	25,163	32,656
Derivative liability	2,841	0
Total liabilities	49,685	63,459
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.0001 par value, 5,000,000 shares authorized as of June 30, 2024 and December 31, 2023; no shares issued or outstanding as of June 30, 2024 and December 31, 2023	0	0
Common stock, $0.0001 par value, 200,000,000 shares authorized as of June 30, 2024 and December 31, 2023; 43,702,147 and 39,107,048 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	4	4
Additional paid-in capital	481,529	455,443
Accumulated deficit	(377,515)	(344,073)
Total stockholders’ equity	104,018	111,374
Total liabilities and stockholders’ equity	$ 153,703	$ 174,833

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Balance Type:	credit
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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).