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INVENTORIES
3 Months Ended
Mar. 31, 2020
INVENTORIES  
INVENTORIES

9.    INVENTORIES

Inventories consist of the following:

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March 31, 

    

December 31, 

(in thousands)

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2020

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2019

Raw materials and supplies

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$

28,276

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$

24,993

Work in process

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7,998

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7,731

Finished goods

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9,672

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8,829

Total inventories

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$

45,946

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$

41,553

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