Condensed Balance Sheet - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash, cash equivalents and short-term marketable securities	$ 33,889	$ 43,459
Marketable securities	147,132	71,194
Prepaid expenses and other current assets	9,593	11,045
Total current assets	190,614	125,698
Restricted cash, noncurrent	0	293
Property and equipment, net	40	51
Operating lease right-of-use assets	4,030	5,173
Prepaid expenses and other noncurrent assets	465	162
Non-marketable equity securities	29	58
Total assets	195,178	131,435
Current liabilities:
Accounts payable	13,280	11,991
Operating lease liabilities	2,560	2,645
Accrued expenses and other current liabilities	10,995	10,964
Total current liabilities	26,835	25,600
Long-term debt	24,962	24,810
Operating lease liabilities, noncurrent	2,571	3,831
Accrued and other noncurrent liabilities	287	286
Total liabilities	54,655	54,527
Stockholders' equity
Preferred stock, $0.001 par value; 10,000,000 authorized as of June 30, 2023 and December 31, 2022; no shares issued and outstanding as of June 30, 2023 and December 31, 2022	0	0
Additional paid-in capital	403,964	290,216
Accumulated other comprehensive loss	(142)	(224)
Accumulated deficit	(263,343)	(213,112)
Total stockholders' equity	140,523	76,908
Total liabilities and stockholders' equity	195,178	131,435
Common Class A [Member]
Stockholders' equity
Class A common stock, $0.001 par value; 500,000,000 shares authorized as of June 30, 2023 and December 31, 2022; 44,308,429 and 27,800,861 shares issued and outstanding as of June 30, 2023 and December 31, 2022, respectively	$ 44	$ 28