Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 53,008	$ 146,284
Marketable securities, available for sale	79,054
Prepaid expenses and other current assets	2,187	3,140
Total current assets	134,249	149,424
Property and equipment, net	34	38
Other non-current assets	25	32
Total assets	134,308	149,494
Current liabilities:
Accounts payable	882	5,648
Accrued expenses	9,553	3,141
Total current liabilities	10,435	8,789
Non-current liabilities:
Restricted stock repurchase liability	7	8
Total liabilities	10,442	8,797
Commitments and contingencies (see note 10)
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of March 31, 2022 and December 31, 2021; no shares issued or outstanding as of March 31, 2022 and December 31, 2021, respectively
Common stock, $0.0001 par value; 500,000,000 shares authorized as of March 31, 2022 and December 31, 2021, respectively; 23,269,742 and 23,225,637 issued as of March 31, 2022 and December 31, 2021, respectively; 23,253,966 and 23,205,915 outstanding as of March 31, 2022 and December 31, 2021, respectively	2	2
Additional paid-in capital	196,529	195,881
Accumulated other comprehensive loss	(204)
Accumulated deficit	(72,461)	(55,186)
Total stockholders' equity	123,866	140,697
Total liabilities and stockholders' equity	$ 134,308	$ 149,494