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Inventories (Tables) | 6 Months Ended
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Jun. 30, 2022
Inventory Disclosure [Abstract] |
Summary of Inventories | Inventories as of June 30, 2022 and December 31, 2021 consist of the following (in thousands):
|  | June 30, 2022 |  |  | December 31, 2021 |
Finished goods |  | $ | 5,397 |  |  | $ | 9,594 |
Semi-finished goods and work-in-process |  |  | 30,443 |  |  |  | 25,968 |
Raw materials |  |  | 10,305 |  |  |  | 9,443 |
Materials in-transit |  |  | 229 |  |  |  | 95 |
Less: inventory reserve |  |  | (10,206 | ) |  |  | (5,730 | )
Inventories, net |  | $ | 36,168 |  |  | $ | 39,370 |
Changes in Inventory Reserve | Changes in inventory reserve for the three and six months ended June 30, 2022 and 2021 are as follows (in thousands):
|  | Three Months Ended |  |  | Six Months Ended |  |  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, 2022 |  |  | June 30, 2021 |
Beginning balance |  | $ | (5,555 | ) |  | $ | (5,730 | ) |  | $ | (6,281 | ) |  | $ | (5,901 | )
Change in reserve |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory reserve charged to costs of sales |  |  | (6,093 | ) |  |  | (7,700 | ) |  |  | (3,186 | ) |  |  | (5,350 | )
Sale of previously reserved inventory |  |  | 872 |  |  |  | 2,324 |  |  |  | 1,343 |  |  |  | 1,977 |
|  |  | (5,221 | ) |  |  | (5,376 | ) |  |  | (1,843 | ) |  |  | (3,373 | )
Write off |  |  | 84 |  |  |  | 295 |  |  |  | 28 |  |  |  | 930 |
Translation adjustments |  |  | 486 |  |  |  | 605 |  |  |  | (5 | ) |  |  | 243 |
Ending balance |  | $ | (10,206 | ) |  | $ | (10,206 | ) |  | $ | (8,101 | ) |  | $ | (8,101 | )

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