Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities
Net loss	$ (80,795)	$ (82,530)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,259	3,191
Loss (Gain) on disposals of assets, net	14	(3)
Impairment of goodwill	3,907	1,630
Impairment of other noncurrent assets	0	32,915
Change in fair value of warrant liabilities	28,021	0
Amortization of discounts on investments, net	(1,174)	(570)
Stock-based compensation expense	4,315	4,545
Shares issued as payment for services	527	528
Deferred income taxes	0	(1,718)
Receivables:
Trade	599	391
Other	(4)	490
Prepaid expenses	910	1,158
Other assets	(215)	55
Accounts payable	684	3,178
Accrued compensation and benefits	1,662	1,468
Other accrued liabilities	5,378	(235)
Deferred revenue	(291)	(131)
Lease liabilities	(99)	303
Settlement and indemnification accruals	0	(1,862)
Net cash used in operating activities	(35,302)	(37,197)
Cash flows from investing activities
Purchases of investments	(38,875)	(51,664)
Sales and maturities of investments	62,448	97,335
Purchases of property, plant and equipment	(1,588)	(6,674)
Proceeds from sale of assets	0	3
Net cash provided by investing activities	21,985	39,000
Cash flows from financing activities
Payment of issuance cost related to 2024 public offering of shares	(355)	0
Payments to taxing authorities in connection with shares directly withheld from employees	(1,776)	0
Proceeds from stock option exercises	223	52
Payment of issuance costs related to Series A Preferred Stock	(537)	0
Net cash (used in) provided by financing activities	(2,445)	52
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	5	(95)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(15,757)	1,760
Cash, cash equivalents, and restricted cash
Beginning of period	29,517	7,848
End of period	13,760	9,608
Supplemental disclosure of cash flow information
Cash paid during the period for interest	0	5
Cash paid during the period for income taxes	3	4
Significant noncash activities
Accrued compensation paid in equity awards	3,578	3,039
Purchases of property and equipment included in accounts payable and other accrued liabilities	254	1,171
Proceeds from sale of assets included in accounts receivable	$ 0	$ 57