Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 128,057	$ 142,467
Other current assets	2,308	1,522
Total current assets	130,365	143,989
Property and equipment, net	6,227	6,452
Operating lease right-of-use assets	10,516	10,766
Intangible asset, net	73	128
Other non-current assets	1,945	1,928
Total assets	149,126	163,263
Current liabilities
Accounts payable and accrued liabilities	6,325	7,415
Operating lease liabilities	1,216	1,166
Finance lease liabilities	55	55
Total current liabilities	7,596	8,636
Non-current operating lease liabilities	11,371	11,696
Non-current finance lease liabilities	66	67
Total liabilities	19,033	20,399
Stockholders’ equity
Common stock - $0.000001 par value - authorized, 100,000,000 as of March 31, 2022 and December 31, 2021; issued and outstanding, 42,493,971 as of March 31, 2022 and 42,457,471 as of December 31, 2021.	0	0
Preferred stock - $0.000001 par value - authorized, 5,000,000 as of March 31, 2022 and December 31, 2021; issued and outstanding, 0 as of March 31, 2022 and December 31, 2021.	0	0
Additional paid-in capital	538,942	536,362
Accumulated deficit	(408,849)	(393,498)
Total stockholders’ equity	130,093	142,864
Total liabilities and stockholders’ equity	$ 149,126	$ 163,263