Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 120,027	$ 161,405
Prepaid expenses and other current assets	4,100	4,249
Total current assets	124,127	165,654
Property and equipment, net	10,100	11,765
Right-of-use assets	59,102	5,491
Restricted cash	5,037	5,031
Long-term deposit and other assets	725	166
Total assets	199,091	188,107
Current liabilities:
Accounts payable	2,912	1,765
Accrued expenses and other current liabilities	6,838	6,517
Operating lease liability, current portion	3,681	1,651
Deferred revenue, current portion	3,874	11,410
Total current liabilities	17,305	21,343
Deferred revenue, net of current portion		1,497
Operating lease liability, net of current portion	53,013	4,392
Long-term debt and accrued interest	29,290
Other long term liabilities	49	97
Total liabilities	99,657	27,329
Commitments and contingencies (Note 9)
Stockholders' equity (deficit):
Additional paid-in capital	257,810	252,933
Accumulated deficit	(158,379)	(92,158)
Total stockholders' equity	99,434	160,778
Total liabilities and stockholders' equity	199,091	188,107
Voting Common Stock
Stockholders' equity (deficit):
Common stock	2	2
Non-voting Common Stock
Stockholders' equity (deficit):
Common stock	$ 1	$ 1