Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 55,129	$ 35,582
Short-term investments	306,071	339,383
Prepaid expenses and other current assets (includes related party amounts of $23 and $0, respectively)	3,454	2,054
Total current assets	364,654	377,019
Restricted cash	816	816
Property and equipment, net	2,660	1,412
Operating lease right-of-use assets	130	185
Other long-term assets	337	392
Total assets	368,597	379,824
Current liabilities:
Accounts payable	1,939	2,458
Accrued liabilities (includes related party amounts of $0 and $32, respectively)	5,074	3,779
Current portion of deferred revenue	4,649	5,163
Unvested stock liabilities	700	1,203
Current portion of operating lease liabilities	153	194
Total current liabilities	12,515	12,797
Deferred revenue, net of current portion	0	700
Total liabilities	12,515	13,497
Commitments and contingencies (Note 3)
Stockholders’ equity (deficit):
Preferred stock, $0.001 par value; authorized shares -10,000,000 at March 31, 2022 and December 31, 2021, respectively; no shares issued and outstanding at March 31, 2022 and December 31, 2021
Common stock, $0.001 par value; authorized shares - 200,000,000 at March 31, 2022 and December 31, 2021, respectively; issued shares - 41,629,367 and 41,622,962 at March31,2022 and December31,2021, respectively; outstanding shares - 41,393,660 and 41,243,137 at March 31, 2022 and December 31,2021, respectively	41	41
Additional paid-in capital	418,429	413,967
Accumulated other comprehensive loss	(1,567)	(270)
Accumulated deficit	(60,821)	(47,411)
Total stockholders' equity	356,082	366,327
Total liabilities, and stockholders' equity	$ 368,597	$ 379,824