Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 22,019	$ 32,550
Short-term investments	60,688	65,344
Prepaid expenses and other current assets	2,092	2,935
Total current assets	84,799	100,829
Property and equipment, net	2,004	2,243
Operating lease right-of-use assets	1,825	2,223
Restricted cash	1,392	1,392
Other assets	3,848	3,281
Total assets	93,868	109,968
Current liabilities:
Accounts payable	3,951	2,616
Accrued expenses and other current liabilities	6,793	9,030
Operating lease liabilities	1,900	1,549
Deferred revenue	1,510	1,275
Total current liabilities	14,154	14,470
Operating lease liabilities, net of current portion	191	667
Deferred revenue, net of current portion	13,432	14,077
Total liabilities	27,777	29,214
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock, $0.001 par value, 10,000,000 shares authorized at March 31, 2023 and December 31, 2022; no shares issued and outstanding at March 31, 2023 and December 31, 2022
Common stock, $0.001 par value; 200,000,000 shares authorized at March 31, 2023 and December 31, 2022; 31,836,815 and 31,827,659 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	32	32
Additional paid-in capital	331,001	329,387
Accumulated other comprehensive income (loss), net of tax	(12)	10
Accumulated deficit	(264,930)	(248,675)
Total stockholders’ equity	66,091	80,754
Total liabilities and stockholders’ equity	$ 93,868	$ 109,968