Condensed Balance Sheet - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 111,506	$ 79,674
Marketable securities	39,432	0
Prepaid expenses and other current assets	6,805	2,863
Total current assets	157,743	82,537
Restricted cash, noncurrent	293	293
Property and equipment, net	16	0
Operating lease right-of-use assets	6,275	0
Prepaid expenses and other noncurrent assets	67	51
Non-marketable equity securities	580	867
Total assets	164,974	83,748
Current liabilities:
Accounts payable	7,328	1,385
Operating lease liabilities	2,490	0
Restructuring liability	0	377
Accrued expenses and other current liabilities	10,151	5,928
Total current liabilities	19,969	7,690
Long-term debt	4,937	4,923
Operating lease liabilities, noncurrent	5,357	0
Restructuring liability, noncurrent	0	1,257
Accrued and other noncurrent liabilities	286	286
Total liabilities	30,549	14,156
Stockholders' equity
Preferred stock, $0.001 par value; 10,000,000 authorized as of March 31, 2022 and December 31, 2021; no shares issued and outstanding as of March 31, 2022 and December 31, 2021	0	0
Additional paid-in capital	275,551	193,627
Accumulated other comprehensive loss	(12)	0
Accumulated deficit	(141,141)	(124,056)
Total stockholders' equity	134,425	69,592
Total liabilities and stockholders' equity	164,974	83,748
Common Class A [Member]
Stockholders' equity
Common Stock	27	21
Common Class B Non Voting [Member]
Stockholders' equity
Common Stock	$ 0	$ 0