Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 31,110	$ 37,887
Short-term investments	50,952	58,497
Other current assets	1,718	2,750
Total current assets	83,780	99,134
Property and equipment, net	561	6,163
Operating lease right-of-use assets	9,135	9,715
Other non-current assets	529	936
Total assets	94,005	115,948
Current liabilities
Accounts payable and accrued liabilities	3,387	9,547
Operating lease liabilities	1,490	1,375
Finance lease liabilities	3	140
Total current liabilities	4,880	11,062
Non-current operating lease liabilities	9,543	10,322
Non-current finance lease liabilities	6	233
Total liabilities	14,429	21,617
Stockholders’ equity
Common stock - $0.000001 par value - authorized, 100,000,000 as of June 30, 2023 and December 31, 2022; issued and outstanding, 44,021,429 as of June 30, 2023 and 42,648,346 as of December 31, 2022	0	0
Preferred stock - $0.000001 par value - authorized, 5,000,000 as of June 30, 2023 and December 31, 2022; issued and outstanding, 0 as of June 30, 2023 and December 31, 2022	0	0
Additional paid-in capital	546,933	545,407
Accumulated other comprehensive income (loss)	(13)	(21)
Accumulated deficit	(467,344)	(451,055)
Total stockholders’ equity	79,576	94,331
Total liabilities and stockholders’ equity	$ 94,005	$ 115,948