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Note 3 - Inventories (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

December 31,

 
   

2023

   

2022

 
   

(Dollars in thousands)

 

Raw materials and purchased parts for assembly

  $ 20,588     $ 10,629  

Self-manufactured assembly parts and finished products

    24,449       12,203  

Total

  $ 45,037     $ 22,832