Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 87,880	$ 149,103
Prepaid expenses and other current assets	8,537	10,499
Total current assets	96,417	159,602
Restricted cash	2,637	2,637
Property, plant and equipment, net	14,963	50,610
Operating lease right-of-use assets	10,943
Other non-current assets	1,316	1,107
Total assets	126,276	213,956
Current liabilities
Accounts payable	10,946	21,763
Accrued expenses and other current liabilities	18,287	29,983
Deferred revenue	33,557
Total current liabilities	62,790	51,746
Build-to-suit lease liability		25,900
Term loan, net	37,967	37,192
Operating lease liability, net of current portion	20,440
Other non-current liabilities	4,130	3,735
Total liabilities	125,327	118,573
Commitments and contingencies - Note 11
Stockholders' equity
Preferred stock, $0.00001 par value per share; 10,000,000 shares authorized and no shares issued and outstanding as of December 31, 2022 and December 31, 2021
Common stock, $0.00001 par value per share; 200,000,000 shares authorized and 63,207,507 and 38,473,945 issued and outstanding as of December 31, 2022 and December 31, 2021 respectively	1
Additional paid-in capital	402,389	331,032
Accumulated deficit	(401,441)	(235,649)
Total stockholders’ equity	949	95,383
Total liabilities and stockholders' equity	$ 126,276	$ 213,956