CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 61,259	$ 44,704
Prepaid expenses and other current assets	2,050	3,423
Total current assets	63,309	48,127
Restricted cash	1,775	1,587
Property and equipment, net	4,845	5,942
Operating lease right-of-use asset	4,729	5,125
Other non-current assets		145
Total assets	74,658	60,926
Current liabilities
Accounts payable	972	1,050
Accrued expenses	9,793	10,497
Deferred revenue, current portion	26,105
Operating lease liability, current portion	1,152	1,047
Note payable, current portion		3,315
Other current liabilities		48
Total current liabilities	38,022	15,957
Deferred revenue, net of current portion	8,399
Operating lease liability, net of current portion	7,263	8,142
Total liabilities	53,684	24,099
Commitments and contingencies (Note 7)
Stockholders' equity
Preferred stock, $0.0001 par value; 5,000,000 shares authorized, no shares issued or outstanding
Common stock, $0.0001 par value; 200,000,000 shares authorized at September 30, 2024 and December 31, 2023; 43,958,074 shares issued and outstanding at September 30, 2024; 27,613,263 shares issued and 27,607,646 shares outstanding at December 31, 2023	4	3
Additional paid-in capital	391,630	362,336
Accumulated deficit	(370,660)	(325,512)
Total stockholders' equity	20,974	36,827
Total liabilities and stockholders' equity	$ 74,658	$ 60,926

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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- 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).