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Note 4 - Inventories
12 Months Ended
Dec. 31, 2022
Notes to Financial Statements  
Inventory Disclosure [Text Block]

4.

INVENTORIES:

 

Inventories consist of the following (in thousands):

 

   

December 31,

 
   

2022

   

2021

 
                 

Raw materials

  $ 47,978     $ 44,697  

Work-in-process

    5,114       3,018  

Finished goods

    15,773       10,096  

Supplies

    2,164       1,840  

Total inventories

  $ 71,029     $ 59,651