Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash	$ 279,082	$ 13,114
Restricted cash	1,642	2,384
Prepaid expenses and other current assets	5,829	662
Total current assets	286,553	16,160
Property and equipment, net	1,076	10
Total assets	287,629	16,170
Current liabilities:
Accounts payable	3,899	1,918
Accrued and other current liabilities	4,757	1,532
Deferred revenue	582	2,384
Total current liabilities	9,238	5,834
Long-term convertible promissory note	0	4,947
Embedded derivative liability	0	1,604
Other noncurrent liabilities	171	426
Total liabilities	9,409	12,811
Commitments and contingencies (Note 2)
Stockholders' equity (deficit):
Preferred stock, $0.0001 par value; 50,000,000 and no shares authorized at December 31, 2021 and 2020, respectively; no shares issued and outstanding at either December 31, 2021 or 2020	0	0
Common stock, $0.0001 par value; 500,000,000 and 78,000,000 shares authorized at December 31, 2021 and 2020, respectively; 39,429,103 and 3,596,936 shares issued as of December 31, 2021 and 2020, respectively; 39,175,172279 and 2,639,026 shares outstanding as of December 31, 2021 and December 31, 2020, respectively	5	2
Additional paid-in capital	372,284	393
Accumulated deficit	(94,069)	(27,098)
Total stockholders' equity (deficit)	278,220	(26,703)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	287,629	16,170
Total liabilities	9,409	12,811
Convertible Preferred Stock [Member]
Current liabilities:
Convertible preferred stock, $0.0001 par value; no shares authorized at December 31, 2021 and 54,039,749 shares authorized at December 31, 2020; no shares issued and outstanding at December 31, 2021 and 32,198,879 shares issued and outstanding at December 31, 2020; $0 and $30,007 aggregate liquidation preference at December 31, 2021 and 2020, respectively	$ 0	$ 30,062