Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net loss	$ (23,817)	$ (7,586)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,465	1,081
Amortization of deferred financing costs	60	0
Stock-based compensation	4,486	2,671
Provision for inventory write-down	1,086	705
Provision for credit losses, net of recoveries	(184)	(752)
Provision for sales returns	541	1,448
Provision for warranty expense	70	121
Unrealized loss on foreign currency transactions	1,396	874
Subsidiary dissolution	0	(68)
Loss on disposal of property, plant and equipment	40	0
Changes in operating assets and liabilities, excluding effects of acquisition:
Accounts receivable	26,466	6,418
Other receivable	(7,449)	126
Inventories	(2,060)	(14,557)
Contract assets	(29)	1,261
Prepaid expenses and other assets	(3,818)	(4,557)
Accounts payable	(11,316)	1,586
Contract liabilities	(3,265)	(43)
Accrued and other liabilities	159	540
Net cash used in operating activities	(15,169)	(10,732)
Cash flows from investing activities:
Proceeds from disposal of property, plant and equipment and other assets	1,790	0
Purchases of property, plant and equipment	(775)	(1,317)
Net cash provided by (used in) investing activities	1,015	(1,317)
Cash flows from financing activities:
Repayments of long-term borrowings	(313)	0
Proceeds from short-term borrowings and line of credit, net	8,918	0
Proceeds from related party term loan	4,059	0
Repayments of related party term loan	(5,845)	0
Payments for debt issue costs	(122)	(178)
Proceeds from exercise of stock awards and employee stock plan purchases	(87)	156
Net cash provided by (used in) financing activities	6,610	(22)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	96	(903)
Net change in cash, cash equivalents and restricted cash	(7,448)	(12,974)
Cash, cash equivalents and restricted cash at beginning of period	38,464	53,639
Cash, cash equivalents and restricted cash at end of period	31,016	40,665
Reconciliation of cash, cash equivalents and restricted cash to condensed consolidated balance sheets
Cash and cash equivalents	28,892	34,160
Restricted cash	1,975	6,343
Long-term restricted cash	149	162
Cash, cash equivalents and restricted cash	31,016	40,665
Cash paid during the period for:
Interest - bank and trade facilities	660	36
Interest - related party	64	0
Income taxes	$ 480	$ 283