Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (37,431)	$ (34,683)	$ (23,082)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	8,429	4,551	5,143
Impairment of long-lived assets and non-cash restructuring	827	4,425	6,472
Gain on Lease termination		(908)
Loss on extinguishment of debt			1,343
Amortization of deferred financing costs	173	12	149
Stock-based compensation	15,802	8,990	4,613
Provision for inventory write-down	4,946	4,064	5,531
Bad debt expense, net of recoveries	(229)	14,491	3,833
Provision for sales returns	2,556	1,132	1,303
Provision for warranty	656	798	1,072
Unrealized loss (gain) on foreign currency transactions	448	335	2,875
Subsidiary dissolution	(68)
Loss (gain) of disposal of property, plant and equipment	(135)	(468)	18
Deferred taxes		1,329	316
Changes in operating assets and liabilities:
Accounts receivable	(68,575)	(6,624)	(18,782)
Other receivable	(9,520)	(4,780)	822
Inventories	(28,219)	(23,241)	(6,916)
Contract assets	1,488	3,915	11,341
Prepaid expenses and other assets	(6,363)	(2,965)	703
Accounts payable	61,697	19,092	11,136
Contract liabilities	1,031	2,215	13
Accrued and other liabilities	1,589	(6,006)	(2,839)
Net cash provided by (used in) operating activities	(50,898)	(14,326)	5,064
Cash flows from investing activities:
Proceeds from disposal of property, plant and equipment and other assets	165	561
Purchases of property, plant and equipment	(4,532)	(5,585)	(2,270)
Acquisition of business, net of cash acquired	(23,647)	(4,459)
Net cash used in investing activities	(28,014)	(9,483)	(2,270)
Cash flows from financing activities:
Proceeds from issuance of common stock in public offerings, net of issuance costs	30,774	59,525
Proceeds from long-term borrowings	25,000
Repayments of long-term borrowings	(625)		(13,125)
Proceeds from short-term borrowings and line of credit, net	4,000		13,774
Repayments of short-term borrowings and line of credit, net		(13,278)	(16,696)
Proceeds from related party term loan	5,041		18,341
Repayments of related party term loan		(29,298)
Payments for debt issue costs	(839)
Payment of contingent consideration	(558)
Proceeds from factored accounts receivable			11,645
Proceeds from exercise of stock awards and employee stock plan purchases	1,975	6,829	3,685
Net cash provided by financing activities	64,768	23,778	17,624
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,031)	(917)	534
Net change in cash, cash equivalents and restricted cash	(15,175)	(948)	20,952
Cash, cash equivalents and restricted cash at beginning of period	53,639	54,587	33,635
Cash, cash equivalents and restricted cash at end of period	38,464	53,639	54,587
Reconciliation of cash, cash equivalents and restricted cash to balance sheets
Cash and cash equivalents	34,347	46,666	45,219
Restricted cash	3,969	6,808	9,200
Long-term restricted cash	148	165	168
Cash, cash equivalents and restricted cash at end of period	38,464	53,639	54,587
Cash paid during the period for:
Interest - bank and trade facilities	1,177	83	788
Interest - related party	65	108	981
Income taxes	$ 1,017	$ 3,029	$ 2,645