Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 322,229	$ 381,393
Prepaid expenses and other current assets	12,748	13,194
Accounts receivable, net	3,879	1,637
Inventory	1,458	1,208
Total current assets	340,314	397,432
Property, plant and equipment, net	1,962	2,146
Operating lease right-of-use assets	1,264	1,475
Restricted cash	2,867	2,863
Inventory, noncurrent	8,400	8,234
Other long-term assets	1,692	1,692
Total assets	356,499	413,842
Current liabilities:
Accounts payable (including related party amounts of $33 and $25, respectively)	8,403	12,601
Accrued expenses (including related party amounts of $3,169 and $2,694, respectively)	16,541	17,197
Accrued interest	1,307	1,146
Operating lease liabilities, current	730	726
Current portion of revenue interest financing liability	16,478	7,111
Total current liabilities	43,459	38,781
Long-term debt, net of discount	149,023	137,842
Revenue interest financing liability	302,528	299,816
Operating lease liabilities	292	462
Other long-term liabilities	9,700	9,700
Total liabilities	505,002	486,601
Commitments and contingencies (Note 4)
Stockholders' deficit:
Preferred stock, $0.0001 par value; authorized shares - 40,000,000 at March 31, 2024 and December 31, 2023; no shares issued and outstanding at March 31, 2024 and December 31, 2023
Common stock, $0.0001 par value; authorized shares - 400,000,000 at March 31, 2024 and December 31, 2023; issued and outstanding shares - 58,524,101 and 57,970,044 at March 31, 2024 and December 31, 2023, respectively	5	5
Treasury stock -19 shares at March 31, 2024 and December 31, 2023	0	0
Additional paid-in capital	863,029	855,921
Accumulated deficit	(1,011,537)	(928,685)
Total stockholders' deficit	(148,503)	(72,759)
Total liabilities and stockholders' deficit	$ 356,499	$ 413,842

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).