Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net loss	$ (31,104)	$ (32,400)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,551	3,555
Impairment of long-lived assets and non-cash restructuring	827	4,475
Gain on Lease termination		(908)
Amortization of deferred financing costs	121	12
Stock-based compensation	10,562	6,450
Provision for inventory write-down	3,498	2,928
Provision for credit losses, net of recoveries	(482)	14,579
Provision for sales returns	2,307	873
Provision for warranty expense	323	636
Unrealized loss on foreign currency transactions	1,318	47
Subsidiary dissolution	(68)
Gain on disposal of property, plant and equipment	(68)
Deferred taxes		139
Changes in operating assets and liabilities excluding effects of acquisition:
Accounts receivable	(28,207)	(3,945)
Other receivable	(11,577)	(7,648)
Inventories	(50,719)	(24,256)
Contract assets	1,515	2,557
Prepaid expenses and other assets	(4,248)	(7,063)
Accounts payable	58,202	21,991
Contract liabilities	5,744	631
Accrued and other liabilities	(662)	2,282
Net cash used in operating activities	(38,167)	(15,065)
Cash flows from investing activities:
Proceeds from disposal of property, plant and equipment and other assets	65
Purchases of property, plant and equipment	(2,310)	(4,158)
Acquisition of business, net of cash acquired	(22,297)	(4,459)
Net cash used in investing activities	(24,542)	(8,617)
Cash flows from financing activities:
Proceeds from issuance of common stock in public offerings, net of issuance costs		59,525
Proceeds from long-term borrowings	25,000
Repayments of long-term borrowings	(313)
Proceeds from short-term borrowings and line of credit, net	7,000
Repayments of short-term borrowings and line of credit		(13,278)
Repayments of related party term loan		(29,298)
Payments for debt issue costs	(776)
Payment of contingent consideration	(558)
Proceeds from exercise of stock awards and employee stock plan purchases	485	4,629
Net cash provided by financing activities	30,838	21,578
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(815)	71
Net change in cash, cash equivalents and restricted cash	(32,686)	(2,033)
Cash, cash equivalents and restricted cash at beginning of period	53,639	54,587
Cash, cash equivalents and restricted cash at end of period	20,953	52,554
Reconciliation of cash, cash equivalents and restricted cash to condensed consolidated balance sheets
Cash and cash equivalents	17,861	45,505
Restricted cash	2,942	6,884
Long-term restricted cash	150	165
Cash, cash equivalents and restricted cash at end of period	20,953	52,554
Cash paid during the period for:
Interest - bank and trade facilities	425	83
Interest - related party		108
Income taxes	$ 986	$ 3,029