Inventories (Tables)

3 Months Ended

Mar. 31, 2023

Inventories [Abstract]

Summary of Inventories

Inventories as of March 31, 2023 and December 31, 2022 consist of the following (in thousands):

	March 31, 2023			December 31, 2022
Finished goods	$	5,523		$	6,799
Semi-finished goods and work-in-process		39,427			40,265
Raw materials		6,351			7,460
Materials in-transit		—			36
Less: inventory reserve		(14,941	)		(14,677	)
Inventories, net	$	36,360		$	39,883

Changes in Inventory Reserve

Changes in inventory reserve for the three months ended March 31, 2023 and 2022 are as follows (in thousands):

	Three Months Ended
	March 31, 2023			March 31, 2022
Beginning balance	$	(14,677	)	$	(5,730	)
Change in reserve
Inventory reserve charged to costs of sales		(2,584	)		(1,607	)
Sale of previously reserved inventory		1,476			1,452
		(1,108	)		(155	)
Write off		415			211
Translation adjustments		429			119
Ending balance	$	(14,941	)	$	(5,555	)