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Note 11 - Financial Information About Geographic Areas (Tables)
6 Months Ended
Jun. 30, 2024
Notes Tables  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
   

For the Three Months Ended

   

For the Six Months Ended

 
   

June 30,

   

June 30,

 
   

2024

   

2023

   

2024

   

2023

 

Net sales by geographic region

                               

United States

  $ 16,128,000     $ 16,061,000     $ 29,427,000     $ 29,754,000  

International

    161,000       54,000       345,000       160,000  
                                 

Consolidated net sales

  $ 16,289,000     $ 16,115,000     $ 29,772,000     $ 29,914,000  
   

June 30,

   

December 31,

 
   

2024

   

2023

 

Long-lived assets by geographic region

               

United States

  $ 4,148,000     $ 4,340,000  

International

    1,166,000       1,247,000  
                 

Consolidated total long-lived assets

  $ 5,314,000     $ 5,587,000