CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities
Net loss	$ (9,690)	$ (15,641)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	631	635
Stock-based compensation	5,855	5,669
Non-cash operating lease cost	595	471
Net loss on sale of available-for-sale securities	2	3
Unrealized gain on investments	(116)	(53)
Loss on disposal of fixed assets	3
Non-cash interest expense	106	118
Foreign currency remeasurement gain	(177)	(767)
Changes in operating assets and liabilities:
Accounts receivable	12,838	9,157
Inventories	1,594	(5,996)
Prepaid and other assets	(119)	(1,435)
Accounts payable	(6,138)	4,831
Accrued liabilities and other non-current liabilities	(3,590)	(6,596)
Deferred revenue	165	1,104
Net cash provided by (used in) operating activities	1,959	(8,500)
Investing activities
Capital expenditures	(1,099)	(1,524)
Purchases of investments	(119)	(562)
Proceeds from maturities and sale of investments	2,664	440
Net cash provided by (used in) investing activities	1,446	(1,646)
Financing activities
Net proceeds from equity incentives	441	492
Net costs from public offerings		(72)
Net proceeds on revolving line of credit	120	3,091
Proceeds from loans, net of issuance costs	5,000	(1,450)
Net cash provided by financing activities	5,561	2,061
Effect of exchange rates on cash, cash equivalents, and restricted cash	(90)	116
Net increase (decrease) in cash, cash equivalents, and restricted cash	8,876	(7,969)
Cash, cash equivalents and restricted cash, beginning of period	13,359	37,358
Cash, cash equivalents and restricted cash, end of period	$ 22,235	$ 29,389