Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities
Net loss	$ (23,559)	$ (18,850)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	599	692
Provision for inventory obsolescence	163	523
Provision for product warranties	304	261
Loss (gain) on disposal of property and equipment	13	(2,531)
Loss on extinguishment of debt	0	3,088
Stock based compensation	4,013	5,114
Allowance for credit losses	396	279
Non-cash lease expense	112	87
Non-cash interest expense	1,157	545
Changes in operating assets and liabilities:
Trade receivables	(2,035)	(3,574)
Income tax receivables	0	7,545
Prepaid expenses and other assets	857	(188)
Inventories	2,263	1,459
Accounts payable	(63)	25
Accrued and other liabilities	(2,267)	276
Net cash used in operating activities	(18,047)	(5,249)
Cash flows from investing activities
Purchases of property and equipment	(722)	(533)
Proceeds from sale of property and equipment	0	7,267
Net cash (used in) provided by investing activities	(722)	6,734
Cash flows from financing activities
Proceeds from stock option exercises	0	86
Proceeds from long-term debt	0	43,474
Payment of debt costs	(11)	(3,106)
Proceeds from debt allocated to warrants	0	2,632
Repayment of finance lease liabilities	(20)	(37)
Extinguishment of credit agreement	0	(11,030)
Contributions from non-controlling interest	0	147
Net cash provided by financing activities	6,745	32,166
Effect of exchange rates on cash	113	(191)
Net change in cash and cash equivalents	(11,911)	33,460
Cash and cash equivalents, beginning of year	43,652	10,192
Cash and cash equivalents, end of year	31,741	43,652
Cash paid for:
Interest	4,746	1,935
Income taxes	382	329
Non cash activities:
Fair value of common stock issued in debt amendment	183	0
Transfer of machinery and equipment to inventory	62	0
Right-of-use assets capitalized and operating lease liabilities recognized upon execution of lease	0	4,917
Transfer of right-of-use assets to property and equipment on exercise of purchase option	0	15
Registered Direct Offering [Member]
Cash flows from financing activities
Proceeds from registered direct offering	7,000	0
Payment of direct incremental costs in registered direct offering	$ (224)	$ 0