Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 19,736	$ 70,097
Marketable debt securities	35,188
Prepaid expenses and other current assets	1,820	2,107
Total current assets	56,744	72,204
Property and equipment, net	986	1,049
Operating lease right-of-use assets	3,134	3,406
Restricted cash	1,339	1,339
Other assets	649	669
Total assets	62,852	78,667
Current liabilities:
Accounts payable	425	1,660
Accrued expenses	6,656	6,592
Operating lease liabilities, current	638	594
Total current liabilities	7,719	8,846
Operating lease liabilities	5,077	5,408
Total liabilities	12,796	14,254
Commitments and contingencies (See Note 9)
Stockholders’ equity:
Preferred stock; $0.001 par value per share; 5,000,000 shares authorized as of June 30, 2022 and December 31, 2021; no shares issued and outstanding as of June 30, 2022 and December 31, 2021	0	0
Common stock, $0.001 par value per share; 115,000,000 shares authorized as of June 30, 2022 and December 31, 2021;17,710,450 shares issued and outstanding as of June 30, 2022 and December 31, 2021	18	18
Additional paid-in capital	183,955	180,645
Accumulated deficit	(133,860)	(116,250)
Accumulated other comprehensive loss	(57)
Total stockholders’ equity	50,056	64,413
Total liabilities and stockholders’ equity	$ 62,852	$ 78,667