Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 28,003	$ 31,340
Short-term investments	123,716	125,201
Accounts receivable	23,994	3,267
Inventory	5,565	1,513
Prepaid expenses and other current assets	8,947	5,271
Total current assets	190,225	166,592
Restricted cash equivalents	100,000	100,000
Long-term investments	0	4,983
Property and equipment, net	914	981
Operating lease right-of-use assets	1,431	1,569
Intangible assets, net	58,954	18,740
Other assets	1,382	1,786
Total assets	352,906	294,651
Current liabilities:
Accounts payable	8,690	9,166
Accrued expenses	54,018	30,723
Operating lease liabilities	931	711
Derivative liability	1,090	1,996
Total current liabilities	64,729	42,596
Revenue interest liability, net	140,351	129,923
Operating lease liabilities, noncurrent	1,257	1,903
Other liabilities	4,532	17
Total liabilities	210,869	174,439
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of December 31, 2022 and 2021; no shares issued and outstanding as of December 31, 2022 and 2021; and liquidation value of zero as of December 31, 2022 and 2021	0	0
Common stock, $0.0001 par value; 200,000,000 shares authorized; 36,956,345 shares issued and outstanding, excluding zero shares subject to repurchase as of December 31, 2022; and 30,705,060 shares issued and 30,582,596 shares outstanding, excluding 122,464 shares subject to repurchase as of December 31, 2021	4	3
Additional paid-in capital	535,074	377,403
Accumulated deficit	(392,824)	(257,159)
Accumulated other comprehensive income (loss)	(217)	(35)
Total stockholders’ equity	142,037	120,212
Total liabilities and stockholders’ equity	$ 352,906	$ 294,651