Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 52,432	$ 98,183
Restricted cash	25	25
Short-term available-for-sale securities	98,288	106,446
Prepaid and other current assets	11,237	5,548
Total current assets	161,982	210,202
Property and equipment, net	150	166
Other assets	290	706
Total assets	162,422	211,074
Current liabilities:
Accounts payable	6,843	2,065
Accrued expenses	10,194	6,048
Term loan, current	2,500
Total current liabilities	19,537	8,113
Term loan, non-current, net	16,898
Other non-current liability	30
Total liabilities	36,465	8,113
Commitments and contingencies (Note 5)
Stockholders’ equity:
Preferred stock, $0.001 par value, 10,000,000 shares authorized as of December 31, 2021 and 2020, respectively, no shares issued and outstanding as of December 31, 2021 and 2020, respectively
Common stock, $0.001 par value, 100,000,000 shares authorized as of December 31, 2021 and 2020, respectively; 20,317,204 and 19,931,660 shares issued and outstanding as of December 31, 2021 and 2020, respectively	20	20
Additional paid-in capital	339,218	326,046
Accumulated other comprehensive loss	(64)	(10)
Accumulated deficit	(213,217)	(123,095)
Total stockholders’ equity	125,957	202,961
Total liabilities and stockholders’ equity	$ 162,422	$ 211,074