Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (18,706)	$ (23,817)
Net Loss from continuing operations	(13,535)	(20,035)
Loss from discontinued operations, net of income tax provision	(5,171)	(3,782)
Adjustments to reconcile loss to net cash used in operating activities:
Depreciation and amortization	1,573	2,143
Amortization of deferred financing costs	338	60
Stock-based compensation	2,131	3,917
Inventory write-down provision (recovery)	(3,815)	796
Provision for credit losses, net of recoveries	(161)	(74)
Provision for sales returns	3,529	541
Provision for warranty expense	(614)	(42)
Unrealized loss (gain) on foreign currency transactions	325	127
Loss on disposal of property, plant and equipment		40
Deferred taxes	(111)	0
Changes in operating assets and liabilities:
Accounts receivable	6,418	11,098
Other receivable	(1)	39
Inventories	4,941	7,611
Contract assets	70	(29)
Prepaid expenses and other assets	334	(1,417)
Accounts payable	(9,530)	(9,719)
Contract liabilities	(916)	(3,678)
Accrued and other liabilities	(11,328)	(1,643)
Net cash used in operating activities from continuing operations	(25,523)	(14,047)
Net cash used in operating activities from discontinued operations	(9,192)	(4,868)
Net cash used in operating activities	(30,033)	(15,169)
Cash flows from investing activities:
Intra-group loan to discontinued operations	0	(5,000)
Proceeds from disposal of property, plant and equipment and other assets	0	1,790
Purchases of property, plant and equipment	(74)	(659)
Net cash used in investing activities from continuing operations	(74)	(3,869)
Net cash used in investing activities from discontinued operations	(99)	4,884
Net cash provided by (used in) investing activities	(173)	1,015
Cash flows from financing activities:
Proceeds from private placement of shares	9,925	0
Proceeds from short-term borrowings and line of credit, net	0	8,000
Repayments of short-term borrowings and line of credit	0	(313)
Payments for debt issue costs	0	(122)
Proceeds from exercise of stock awards and employee stock plan purchases	(33)	(87)
Net cash provided by financing activities from continuing operations	9,892	7,478
Net cash provided by (used in) financing activities from discontinued operations	7,997	(868)
Net cash provided by financing activities	17,889	6,610
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(712)	96
Net change in cash, cash equivalents and restricted cash	(13,029)	(7,448)
Cash, cash equivalents and restricted cash at beginning of period	20,909	38,464
Cash, cash equivalents and restricted cash at end of period	7,880	31,016
Reconciliation of cash, cash equivalents and restricted cash to consolidated balance sheet
Cash and cash equivalents	2,636	22,046
Restricted cash	1,285	1,278
Cash, cash equivalents and restricted cash held for sale	3,959	7,692
Cash, cash equivalents and restricted cash	7,880	31,016
Cash paid during the period for:
Interest - bank and trade facilities	337	660
Income taxes	17	0
Interest - bank and trade facilities	187	0
Interest - related party	0	64
Income taxes	$ 32	$ 480