Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 247,087	$ 274,735
Restricted cash	1,472	1,472
Prepaid expenses and other current assets	2,698	2,466
Total current assets	251,257	278,673
Property and equipment, net	995	1,007
Operating lease right-of-use assets		232
Other assets, noncurrent	449	109
Total assets	252,701	280,021
Current liabilities:
Accounts payable	2,055	11,951
Accrued expenses and other current liabilities	17,132	6,592
Operating lease liabilities, current portion		165
Total current liabilities	19,187	18,708
Total liabilities	19,187	18,708
Commitments and contingencies (Note 12)
Stockholders' equity:
Preferred stock, par value $0.001 per share, 10,000,000 shares authorized as of March 31, 2022 and December 31, 2021, zero shares issued and outstanding as of March 31, 2022 and December 31, 2021
Common stock, $0.001 par value per share; 190,000,000 shares authorized as of March 31, 2022 and December 31, 2021; 32,843,985 and 32,792,867 shares issued as of March 31, 2022 and December 31, 2021, respectively, and 32,374,907 and 32,222,881 shares outstanding as of March 31, 2022 and December 31, 2021, respectively	32	32
Additional paid-in capital	356,580	352,999
Accumulated deficit	(123,098)	(91,718)
Total stockholders' equity	233,514	261,313
Total liabilities and stockholders' equity	$ 252,701	$ 280,021