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Inventories
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
4.Inventories:

 

Inventories consist of the following:

 

(In thousands)  March 31,
2020
   December 31,
2019
 
Raw materials and component parts  $63,181   $71,895 
Finished goods   106,296    95,914 
           
   $169,477   $167,809