Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025
Operating activities:
Net loss	$ (28,837)	$ (53,575)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,632	3,891
Reduction in the carrying amount of right-of-use assets	2,842	2,178
Stock-based compensation	4,559	7,424
Provision (recovery) for credit losses	0	(113)
Non-cash interest expense	1,175	929
Amortization of discount on short-term investments	(680)	(931)
Other non-cash items	(16)	0
Changes in operating assets and liabilities:
Financial assets	(5,154)	9,346
Inventories	(279)	(137)
Prepaid expenses and other assets	396	(1,320)
Accounts payable	3,706	(493)
Accrued compensation and other accrued liabilities	(3,195)	(4,295)
Other long-term liabilities	(2,079)	(2,318)
Deferred revenue	(6,634)	(54)
Net cash used in operating activities	(30,564)	(39,468)
Investing activities:
Purchase of property and equipment	(1,148)	(3,951)
Proceeds from sale of property and equipment	17	5
Purchases of short-term investments	(61,253)	(41,891)
Proceeds from maturity of short-term investments	45,840	63,626
Net cash (used in) provided by investing activities	(16,544)	17,789
Financing activities:
Proceeds from exercises of stock options	0	1,098
Proceeds from issuance of stock under employee stock purchase plan	148	317
Proceeds from issuance of common stock	27,000	17,268
Transaction costs incurred	(2,098)	(829)
Proceeds from long-term debt	0	9,897
Payment of debt issuance costs	0	(3)
Net cash provided by financing activities	25,050	27,748
Net (decrease) increase in cash, cash equivalents and restricted cash	(22,058)	6,069
Cash, cash equivalents and restricted cash at the beginning of the period	52,883	20,829
Cash, cash equivalents and restricted cash at the end of the period	30,825	26,898
Supplemental disclosure of cash flow information:
Interest paid	2,417	2,242
Income taxes paid	36	0
Supplemental non-cash investing and financing activities:
Capital expenditures incurred but not yet paid	2,709	212
Cash reconciliation:
Cash and cash equivalents	29,213	25,351
Restricted cash, current and non-current	1,612	1,547
Total cash, cash equivalents and restricted cash	$ 30,825	$ 26,898