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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2020
INVENTORIES  
Schedule of inventories

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December 31, 

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2020

    

2019

(in thousands)

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Raw materials

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$

21,754

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$

24,993

Work in process

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11,378

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7,731

Finished goods

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9,178

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8,829

Total inventories

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$

42,310

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$

41,553