Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities
Net income (loss)	$ 61,022	$ (61,719)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	0	81
Amortization of premiums and discounts on investments	0	(339)
Amortization of debt issuance costs	437	417
Non-cash interest expense related to the revenue interest liability	10,937	11,320
Stock-based compensation expense	3,235	2,903
Changes in assets and liabilities:
Accounts receivable	(6,118)	(2,686)
Prepaids and other assets	(6,590)	(1,608)
Deferred revenue	3,948	8,650
Inventories	(7,472)	(4,151)
Accounts payable	(3,450)	(5,975)
Other accrued liabilities	(2,121)	(1,249)
Net cash provided by (used in) operating activities	53,828	(54,356)
Investing activities
Proceeds from sales/maturities of investments	0	25,000
Purchase of property and equipment	(73)	0
Net cash (used in) provided by investing activities	(73)	25,000
Financing activities
Payments on revenue interest liability	(5,832)	(3,106)
Proceeds from issuance of common stock, warrants, and pre-funded warrants, net of issuance costs	0	52,598
Proceeds from issuance of common stock, net of issuance costs	90,672	0
Proceeds from exercise of warrants, net of issuance costs	5,766	0
Net cash provided by financing activities	90,606	49,492
Net increase in cash and cash equivalents	144,361	20,136
Cash and cash equivalents at beginning of period	82,248	124,775
Cash and cash equivalents at end of period	226,609	144,911
Supplemental disclosure of cash flow information:
Common stock issuance costs not yet paid	0	170
Purchase of property and equipment not yet paid	195	0
Non cash right of use asset	$ 72	$ 1