Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS
Cash and cash equivalents	$ 38,989		$ 15,142
Marketable securities	34,687		77,986
License and development receivables	669		815
Prepaid expenses and other current assets	7,874		4,948
Total current assets	82,219		98,891
Restricted cash	1,529		1,838
Property and equipment, net	3,555		4,549
Operating lease right-of-use assets	3,514		3,806
Other non-current assets	749		842
TOTAL ASSETS	91,566		109,926
CURRENT LIABILITIES
Accounts payable	4,178		3,319
Operating lease liabilities	587		436
Deferred revenue	505		2,359
Accrued and other current liabilities	12,408		14,030
Total current liabilities	17,678		20,144
Non-current operating lease liabilities	4,159		4,608
Deferred revenue, net of current portion	2,174		1,217
Other non-current liabilities	0		16
TOTAL LIABILITIES	24,011		25,985
Commitments and Contingencies (Note 7)
STOCKHOLDERS’ EQUITY
Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of September 30, 2022 and December 31, 2021; no shares issued and outstanding as of September 30, 2022 and December 31, 2021	0		0
Common stock, $0.0001 par value; 500,000,000 shares authorized as of September 30, 2022 and December 31, 2021; 61,511,078 shares and 49,355,130 shares issued and outstanding as of September 30,2022 and December 31, 2021, respectively	6		5
Additional paid-in capital	474,535		425,765
Accumulated other comprehensive loss	(184)		(20)
Accumulated deficit	(406,802)		(341,809)
TOTAL STOCKHOLDERS’ EQUITY	67,555	$ 84,157	83,941
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 91,566		$ 109,926