Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 150,483	$ 187,242
Short-term marketable securities	37,775	81,145
Prepaid expenses and other current assets	5,324	2,958
Total current assets	193,582	271,345
Property and equipment, net	90	131
Right of use asset	1,459	1,662
Other assets, noncurrent	417	201
Total assets	195,548	273,339
Current liabilities:
Accounts payable	6,706	3,428
Accrued expenses and other current liabilities	18,422	9,683
Total current liabilities	25,128	13,111
Operating lease liability, noncurrent	1,311	1,516
Total liabilities	26,439	14,627
Commitments and contingencies (Note 11)
Stockholders' equity:
Common stock, $0.0001 par value, 150,000,000 shares authorized as of December 31, 2021 and December 31, 2020; 34,900,727 and 34,741,649 shares issued and outstanding as of December 31, 2021 and December 31, 2020, respectively	4	4
Additional paid-in capital	479,436	468,238
Accumulated other comprehensive loss	(27)	(3)
Accumulated deficit	(310,304)	(209,527)
Total stockholders' equity	169,109	258,712
Total liabilities and stockholders' equity	$ 195,548	$ 273,339