CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 232,314	$ 232,968
Inventory	1,408
Prepaid expenses	5,509	2,888
Other current assets	2,430	956
Total current assets	241,661	236,812
Property and equipment, net	1,187	1,294
Operating lease right-of-use assets	1,045	1,247
Other assets	925	86
Total assets	244,818	239,439
Current liabilities
Accounts payable	5,872	4,678
Accrued expenses	13,949	11,492
Due to related parties	269	204
Accrued interest	2,896
Other current liabilities	392	293
Total current liabilities	23,378	16,667
Long-term portion of operating lease liabilities	868	1,105
Derivative liabilities	1,891
Long-term debt	91,695
Total liabilities	117,832	17,772
Commitments and contingencies (Note 15)
Stockholders' equity
Common stock, $0.001 par value, 100,000 shares authorized as of September 30, 2022 and December 31, 2021; 28,023 and 27,980 shares issued and outstanding as of September 30, 2022 and December 31, 2021, respectively	28	28
Preferred stock, $0.001 par value, 10,000 shares authorized; no shares issued and outstanding as of September 30, 2022 and December 31, 2021
Additional paid-in-capital	483,695	467,427
Accumulated deficit	(356,737)	(245,788)
Total stockholders' equity	126,986	221,667
Total liabilities and stockholders' equity	$ 244,818	$ 239,439