Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net loss	$ (48,654,000)	$ (20,150,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,529,000	2,442,000
Impairment of long-lived assets and non-cash restructuring	499,000	0
Amortization of deferred financing costs	175,000	72,000
Stock-based compensation	8,812,000	5,539,000
Provision for inventory write-down	3,570,000	1,072,000
Provision for credit losses, net of recoveries	412,000	(896,000)
Provision for sales returns	839,000	2,080,000
Provision for warranty expense	105,000	183,000
Unrealized loss on foreign currency transactions	1,417,000	711,000
Subsidiary dissolution	0	(68,000)
Loss (gain) on disposal of property, plant and equipment	54,000	(68,000)
Changes in operating assets and liabilities, excluding effects of acquisition:
Accounts receivable	51,750,000	(9,605,000)
Other receivable	(8,577,000)	(4,405,000)
Inventories	(27,413,000)	(26,023,000)
Contract assets	(14,000)	818,000
Prepaid expenses and other assets	(1,722,000)	(2,420,000)
Accounts payable	(14,951,000)	19,122,000
Contract liabilities	(7,405,000)	1,040,000
Accrued and other liabilities	607,000	(379,000)
Net cash used in operating activities	(35,967,000)	(30,935,000)
Cash flows from investing activities:
Proceeds from disposal of property, plant and equipment and other assets	1,829,000	65,000
Purchases of property, plant and equipment	(1,196,000)	(1,764,000)
Acquisition of business, net of cash acquired	0	(22,297,000)
Net cash provided by (used in) investing activities	633,000	(23,996,000)
Cash flows from financing activities:
Proceeds from long-term borrowings	0	25,000,000
Repayments of long-term borrowings	(625,000)	0
Proceeds from short-term borrowings and line of credit, net	11,710,000	0
Proceeds from related party term loan	7,068,000	0
Repayments of related party term loan	(9,580,000)	0
Payments for debt issue costs	(197,000)	(771,000)
Payments of contingent consideration	(347,000)	0
Proceeds from exercise of stock awards and employee stock plan purchases	654,000	1,094,000
Net cash provided by financing activities	8,683,000	25,323,000
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,089,000)	(889,000)
Net change in cash, cash equivalents and restricted cash	(27,740,000)	(30,497,000)
Cash, cash equivalents and restricted cash at beginning of period	38,464,000	53,639,000
Cash, cash equivalents and restricted cash at end of period	10,724,000	23,142,000
Reconciliation of cash, cash equivalents and restricted cash to condensed consolidated balance sheets
Cash and cash equivalents	9,662,000	17,125,000
Restricted cash	913,000	5,862,000
Long-term restricted cash	149,000	155,000
Cash, cash equivalents and restricted cash	10,724,000	23,142,000
Cash paid during the period for:
Interest - bank and trade facilities	1,402,000	36,000
Interest - related party	121,000	0
Income taxes	$ 640,000	$ 749,000