CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (64,362)	$ (73,308)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	5,707	7,843
Loss on write-off and disposal of property and equipment and right-of-use asset impairment	106	468
Gain on lease termination	(65)	0
Stock-based compensation	33,553	31,618
Reduction of revenue related to stock warrant issued to customer	2,054	861
Amortization of right-of-use asset	3,868	3,606
Accretion or amortization on short-term investments	(2,400)	(4,239)
Change in fair value of warrant liabilities	(8)	(191)
(Recovery) provision for inventory write-down	(551)	756
Provision (recovery) of doubtful accounts	120	(894)
Realized gain on available for sale securities	(4)	(275)
Changes in operating assets and liabilities:
Accounts receivable	(2,930)	412
Inventory	455	3,851
Prepaid expenses and other assets	(5,943)	22,499
Accounts payable	9,216	2,338
Accrued and other liabilities	6,056	(29,466)
Contract liabilities	(4,374)	7,625
Operating lease liability	(5,028)	(4,637)
Net cash used in operating activities	(24,530)	(31,133)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sale of property and equipment	0	668
Purchases of property and equipment	(3,143)	(2,307)
Purchase of short-term investments	(118,424)	(85,585)
Proceeds from sales of short-term investments	90,000	122,082
Net cash (used in) provided by investing activities	(31,567)	34,858
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from ESPP purchase	980	781
Proceeds from exercise of stock options	83	170
Repayment of borrowings	0	(43,975)
Payments received (remitted) to fund employees tax obligation for vested RSUs	2,440	0
Proceeds from the issuance of common stock under at-the-market offering, net of commissions and fees	94,057	33,792
At-the-market offering costs for the issuance of common stock	(232)	(202)
Net cash provided by (used in) financing activities	97,328	(9,434)
Effect of exchange rates on cash and cash equivalents	436	(206)
Net increase (decrease) in cash, cash equivalents and restricted cash	41,667	(5,915)
Cash, cash equivalents and restricted cash at beginning of period	48,099	52,634
Cash, cash equivalents and restricted cash at end of period	89,766	46,719
SUPPLEMENTAL DISCLOSURES OF OPERATING ACTIVITIES:
Cash paid for interest	0	2,073
Income tax refunds, net of payments	(768)	(218)
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION:
Property and equipment purchases included in accounts payable and accrued liabilities	1,989	17
Right-of-use assets obtained in exchange for operating lease liability	$ 742	$ 0