Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 34,306	$ 149,103
Prepaid expenses and other current assets	8,696	10,499
Total current assets	43,002	159,602
Restricted cash	2,637	2,637
Deferred lease asset	630	667
Property, plant and equipment, net	63,954	50,610
Other non-current assets	1,245	440
Total assets	111,468	213,956
Current liabilities
Accounts payable	15,251	21,763
Accrued expenses and other current liabilities	17,888	29,983
Total current liabilities	33,139	51,746
Build-to-suit lease liability	25,496	25,900
Term loan, net	37,773	37,192
Other non-current liabilities	3,934	3,735
Total liabilities	100,342	118,573
Commitments and contingencies - Note 9
Stockholders' equity
Preferred stock, $0.00001 par value per share; 10,000,000 shares authorized and no shares issued and outstanding as of September 30, 2022 and December 31, 2021
Common stock, $0.00001 par value per share; 200,000,000 shares authorized and 41,175,939 and 38,473,945 issued and outstanding as of September 30, 2022 and December 31, 2021, respectively	1
Additional paid-in capital	357,065	331,032
Accumulated deficit	(345,940)	(235,649)
Total stockholders’ equity	11,126	95,383
Total liabilities and stockholders' equity	$ 111,468	$ 213,956