CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net loss	$ (50,045)	$ (61,618)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,421	3,254
Provision for bad debts	354	301
Equity-based compensation expense	4,382	5,387
Unrealized (gain) loss on equity investments	(65)	(114)
Units offering issuance cost	680	0
Loss on disposal of property and equipment	201	150
(Gain) on extinguishment of accounts payable	(743)	0
Loss (gain) on fair value adjustments	1,971	(12,955)
Paid-in-kind interest	4,380	1,718
Inventory write-down	0	1,184
(Increase) decrease in assets:
Accounts receivable	440	(234)
Inventory	(50)	446
Prepaid expense and other assets	1,104	926
Increase (decrease) in liabilities:
Accounts payable	794	295
Accrued liabilities and other	(930)	(121)
Deferred revenue and income	1,248	2,120
Net cash used in operating activities	(24,194)	(40,196)
Cash flows from investing activities:
Purchases of equipment	(509)	(1,035)
Maturities of marketable securities	0	9,695
Net cash (used in) provided by investing activities	(509)	8,660
Cash flows from financing activities:
Units offering issuance cost	(1,234)	0
Proceeds from issuance of 16.00% Notes	15,000	0
Proceeds from issuance of 5.00% Notes	0	10,000
Payment of debt	(726)	0
Payments on finance leases	(723)	(1,250)
Proceeds from exercise of warrants	522	0
Net cash provided by financing activities	27,053	9,019
Effect of exchange rate on cash	610	(250)
Increase (decrease) in cash and cash equivalents	2,960	(22,767)
Cash and cash equivalents, beginning of year	12,138	34,905
Cash and cash equivalents, end of year	15,098	12,138
Non-cash investing activities:
Net transfer of instruments from inventory to property and equipment, net	452	401
Non-cash financing activities:
Exchange of 2.50% Notes and accrued interest for 5.00% Notes	0	56,893
Debt premium on issuance of 5.00% Notes	0	6,023
Derivative liability associated with the bifurcated conversion option	0	38,160
Reclassification of bifurcated conversion option to contributed capital	0	26,908
Extinguishment of derivative liability in connection with extinguishment of 5.00% Notes	0	380
Issuance of common stock in connection with extinguishment of 5.00% Notes	43	819
Right-of-use assets obtained in exchange for finance lease obligations	0	200
Supplemental cash flow information:
Interest paid	33	122
Income taxes paid, net of refunds	0	363
Nonrelated Party
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of debt discount and issuance costs	8,680	3,278
Loss on extinguishment of debt	0	6,499
Increase (decrease) in liabilities:
Accrued interest	(16)	716
Cash flows from financing activities:
Proceeds from issuance of Units to related party	10,232	0
Transaction costs related to debt and equity issuance	(768)	(3,731)
Related Party
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of debt discount and issuance costs	0	1,033
Loss on extinguishment of debt	0	6,755
Increase (decrease) in liabilities:
Accrued interest	0	784
Cash flows from financing activities:
Proceeds from issuance of Units to related party	4,750	4,000
Non-cash financing activities:
Capital contribution from the exchange of secured note and accrued interest through the issuance of common stock with related party	$ 0	$ 25,366