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INVENTORIES
3 Months Ended
Mar. 31, 2021
INVENTORIES  
INVENTORIES

8.    INVENTORIES

Inventories consist of the following:

    

March 31, 

    

December 31, 

(in thousands)

 

2021

2020

Raw materials and supplies

$

22,651

$

21,754

Work in process

 

12,349

 

11,378

Finished goods

 

10,929

 

9,178

Total inventories

$

45,929

$

42,310