Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 142,467	$ 192,556
Other current assets	1,522	1,966
Total current assets	143,989	194,522
Property and equipment, net	6,452	3,570
Operating lease right-of-use asset	10,766	10,154
Intangible asset, net	128	347
Other non-current assets	1,928	1,926
Total assets	163,263	210,519
Current liabilities
Accounts payable and other liabilities	7,415	7,181
Operating lease liability	1,166	659
Finance lease liability	55	49
Total current liabilities	8,636	7,889
Non-current operating lease liability	11,696	11,306
Non-current finance lease liability	67	108
Total liabilities	20,399	19,303
Stockholders’ equity
Common stock, $0.000001 par value - authorized, 100,000,000 as of December 31, 2021 and December 31, 2020; issued and outstanding, 42,457,471 as of December 31, 2021 and 42,196,296 as of December 31, 2020.	0	0
Preferred stock, $0.000001 par value - authorized, 5,000,000 as of December 31, 2021 and December 31, 2020; issued and outstanding, 0 as of December 31, 2021 and December 31, 2020	0	0
Additional paid-in capital	536,362	524,022
Accumulated deficit	(393,498)	(332,806)
Total stockholders’ equity	142,864	191,216
Total liabilities and stockholders’ equity	$ 163,263	$ 210,519