Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities
Net loss	$ (448)	$ (10,221)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation	682	1,364
Amortization of intangible assets	702	914
Stock-based compensation	4,153	6,183
Non-cash lease expense (benefit)	312	(83)
Deferred income tax expense	6	5
Accretion of available-for-sale investments	(105)	(182)
Gain on disposal of property and equipment, net	0	(14)
Loss on disposal of assets held for rent, net	187	198
Change in operating assets and liabilities, net of effects of acquisitions
Accounts receivable, trade, net	1	65
Inventories	1,447	42
Prepaid expenses and other assets	181	2,392
Accounts payable	(828)	(1,956)
Accrued expenses and other current liabilities	(4,252)	(2,825)
Sales taxes payable	(327)	20
Other	16	(377)
Net cash provided by (used in) operating activities	1,727	(4,475)
Cash flows from investing activities
Purchases of available-for-sale securities	(30,324)	(6,374)
Proceeds from sale of available-for-sale securities	573	973
Maturities of available-for-sale securities	3,000	6,000
Purchases of assets held for rent	(250)	(464)
Purchases of property and equipment	(175)	(356)
Net cash used in investing activities	(27,176)	(221)
Cash flows from financing activities
Payments on equipment loans	0	(241)
Payments on term loans	(2,500)	0
Payments on financed insurance premium	(502)	(727)
Other	10	16
Net cash used in financing activities	(2,992)	(952)
Net decrease in cash, cash equivalents, and restricted cash	(28,441)	(5,648)
Cash, cash equivalents, and restricted cash – beginning of period	95,386	35,438
Effects of currency translation on cash, cash equivalents, and restricted cash	0	(65)
Cash, cash equivalents, and restricted cash – end of period	66,945	29,725
Non-cash investing and financing activities
Purchase of property and equipment not yet paid	552	26
Unrealized gains on currency translation	0	(6)
Unrealized gains (losses) on available-for-sale securities	(9)	18
Cash interest paid	$ 265	$ 445