Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 45,747	$ 74,593
Prepaid expenses and other current assets	2,171	1,324
Total current assets	47,918	75,917
Property and equipment, net	4,503	2,165
Operating lease right-of-use assets	1,355	2,301
Restricted cash	329	329
Other assets	762	118
Total assets	54,867	80,830
Current liabilities:
Accounts payable	3,125	922
Accrued expenses and other current liabilities	4,258	2,977
Operating lease liabilities	1,074	985
Deferred revenue	9,789
Total current liabilities	18,246	4,884
Operating lease liabilities, net of current portion	379	1,454
Deferred revenue, net of current portion	1,926
Total liabilities	20,551	6,338
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock, $0.001 par value; 200,000,000 shares authorized at December 31, 2021 and 2020; 13,007,178 and 12,932,377 shares issued and outstanding at December 31, 2021 and 2020, respectively	13	13
Additional paid-in capital	227,700	224,363
Accumulated deficit	(193,397)	(149,884)
Total stockholders’ equity	34,316	74,492
Total liabilities and stock and stockholders’ equity	$ 54,867	$ 80,830