CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Cash flows from operating activities
Net loss	$ (6,152)	$ (6,542)	$ (8,939)	$ (10,904)	$ (12,694)	$ (19,843)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation					13,321	13,428
Depreciation and amortization					2,646	2,081
Accounts receivable credit losses					475	240	$ 470
Amortization of discount and premium on marketable securities					(1,740)	(3,019)
Inventory reserve					1,235	366
Amortization of debt issuance costs					59	85
Loss on disposal of property and equipment					628	819
Changes in operating assets and liabilities:
Accounts receivable					2,598	(3,022)
Inventory					(8,292)	(3,314)
Prepaid expenses and other assets					(93)	399
Accounts payable					583	1,828
Accrued liabilities and other					(3,464)	(3,953)
Net cash used in operating activities					(4,738)	(13,905)
Cash flows from investing activities
Maturities of marketable securities					104,100	119,000
Purchases of marketable securities					(98,770)	(109,288)
Purchases of property and equipment					(4,171)	(5,195)
Net cash provided by investing activities					1,159	4,517
Cash flows from financing activities
Proceeds from issuance of common stock under employee stock purchase plan					1,568	1,472
Proceeds from the exercise of stock options					768	409
Net cash provided by financing activities					2,336	1,881
Effect of exchange rate changes on cash and cash equivalents					445	(187)
Net decrease in cash and cash equivalents					(798)	(7,694)
Cash and cash equivalents at
Beginning of period		$ 34,948		$ 33,271	34,948	33,271	33,271
End of period	$ 34,150		$ 25,577		34,150	25,577	$ 34,948
Supplemental disclosure of non-cash information
Unpaid purchases of property and equipment					$ 1,017	$ 1,293