Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Operating activities
Net loss	$ (60,714)	$ (13,570)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	7,344	10,380
Depreciation and amortization	156	176
Amortization of debt issuance costs and discounts	5,293	1,605
Net amortization of premiums and discounts on investments	(356)	(1,581)
Gain on extinguishment of debt	0	(44,702)
Change in fair value of embedded derivatives and common stock warrants	(17,929)	(14,342)
Changes in operating assets and liabilities:
Accounts receivable, net	(2,166)	(11,033)
Inventory	(253)	(433)
Prepaid expenses and other assets	3,996	(3,100)
Operating lease right-of-use assets	803	1,105
Accounts payable	(2,510)	(326)
Accrued expenses and other liabilities	8,171	(4,805)
Operating lease liabilities	484	(1,597)
Net cash used in operating activities	(57,681)	(82,223)
Investing activities
Proceeds from maturities of investments	33,573	109,908
Purchases of investments	0	(36,511)
Purchases of property and equipment	0	(195)
Net cash provided by investing activities	33,573	73,202
Financing activities
Proceeds from issuance of senior secured term loan	0	83,300
Proceeds from the exercise of stock options and shares issued under the employee stock purchase plan	356	772
Payment of debt issuance costs	0	(2,588)
Payment of deferred royalty obligation	0	(40,518)
Net cash provided by financing activities	356	40,966
Effect of exchange rates on cash, cash equivalents and restricted cash	13	(27)
Net (decrease) increase in cash, cash equivalents and restricted cash	(23,739)	31,918
Cash, cash equivalents and restricted cash at beginning of period	62,814	53,192
Cash, cash equivalents and restricted cash at end of period	39,075	85,110
Reconciliation of cash, cash equivalents and restricted cash reported within the condensed consolidated balance sheets
Cash and cash equivalents	38,725	84,774
Short-term restricted cash	0	32
Long-term restricted cash	350	304
Total cash, cash equivalents and restricted cash	39,075	85,110
Supplemental disclosures:
Cash paid for interest on deferred royalty obligation	3,711	16,452
Cash paid for interest on convertible debt and term loan	10,668	2,933
Cash paid for amounts included in the measurement of operating lease liabilities	50	1,896
Issuance of common stock used to settle a financial advisory fee related to financing activities	0	7,697
Senior secured term loan issued in exchange for a $14,700 reduction of deferred royalty obligation	0	15,000
Convertible senior notes due 2029 issued with warrants to purchase 3,100 shares of common stock in exchange for a $148,000 reduction of convertible senior notes due 2025	0	111,000
Convertible senior notes due 2029 issued in exchange for a $5,000 reduction of deferred royalty obligation	$ 0	$ 5,000