Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 25,226	$ 37,887
Short-term investments	53,281	58,497
Other current assets	1,386	2,750
Total current assets	79,893	99,134
Property and equipment, net	484	6,163
Operating lease right-of-use assets	8,685	9,715
Other non-current assets	524	936
Total assets	89,586	115,948
Current liabilities
Accounts payable and accrued liabilities	3,658	9,547
Operating lease liabilities	1,550	1,375
Finance lease liabilities	4	140
Total current liabilities	5,212	11,062
Non-current operating lease liabilities	9,134	10,322
Non-current finance lease liabilities	5	233
Total liabilities	14,351	21,617
Stockholders’ equity
Common stock - $0.000001 par value - authorized, 20,000,000 as of September 30, 2023 and December 31, 2022; issued and outstanding, 8,805,284 as of September 30, 2023 and 8,529,668 as of December 31, 2022	0	0
Preferred stock - $0.000001 par value - authorized, 5,000,000 as of September 30, 2023 and December 31, 2022; issued and outstanding, 0 as of September 30, 2023 and December 31, 2022	0	0
Additional paid-in capital	547,105	545,407
Accumulated other comprehensive income (loss)	0	(21)
Accumulated deficit	(471,870)	(451,055)
Total stockholders’ equity	75,235	94,331
Total liabilities and stockholders’ equity	$ 89,586	$ 115,948