CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (193,506)	$ (80,736)	$ (71,038)
Adjustments to reconcile net loss to net cash used in operating activities
Stock-based compensation expense	33,109	17,825	16,964
Non-cash interest expense	3,734	6,106	4,853
Change in fair value of derivative liabilities	480	5,188	(13,841)
Depreciation and amortization expense	3,786	2,983	2,109
Gains and losses on extinguishment of debt, net	27,950	(14,190)
Gain on disposal of property and equipment		1	1
Changes in operating assets and liabilities:
Accounts receivable	(6,209)	(4,854)	(190)
Prepaid expenses and other current assets	(5,663)	(3,766)	723
Inventory	(735)	(331)	(724)
Accounts payable	(318)	583	(621)
Operating lease assets	505	1,570	(3,175)
Accrued expenses	3,638	773	1,644
Deferred revenue	(262)	427	963
Operating lease liabilities	(1,186)	(1,813)	2,729
Net cash used in operating activities	(134,677)	(70,234)	(59,603)
Cash flows from investing activities:
Purchases of property and equipment	(1,288)	(6,087)	(3,715)
Net cash used in investing activities	(1,288)	(6,087)	(3,715)
Cash flows from financing activities:
Proceeds from issuance of short-term bridge loan		2,000
Proceeds from issuance of Barings notes payable		82,474
Proceeds from exercise of stock options	14,741	551	514
Proceeds from issuance of common stock pursuant to employee stock purchase plan	1,016	851	940
Payments of debt refinancing costs		(5,184)
Proceeds from issuance of common stock upon public offering, net of issuance costs		117,261
Repayment of MidCap notes payable		(26,125)
Repayment from issuance of short-term bridge loan		(2,000)
Proceeds from issuance of common stock and pre-funded warrants upon private placement, net of issuance costs	316,353
Net cash provided by financing activities	332,110	169,828	1,454
Net increase in cash, cash equivalents and restricted cash	196,145	93,507	(61,864)
Cash, cash equivalents and restricted cash at beginning of period	197,571	104,064	165,928
Cash, cash equivalents and restricted cash at end of period	393,716	197,571	104,064
Supplemental disclosure of cash flow information:
Cash paid for interest	21,533	5,464	2,147
Supplemental disclosure of non-cash investing and financing activities:
Additions to property and equipment included in accounts payable and accrued expenses	$ 121	$ 16	$ 1,384