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Note 4 - Inventory (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

June 30,

   

December 31,

 
   

2023

   

2022

 

Raw materials and component parts

  $ 4,207,457     $ 2,892,820  

Work-in-process

    5,697,360       5,158,252  

Finished products

    11,712,743       13,483,017  

Total inventory

  $ 21,617,560     $ 21,534,089  

Less: inventory reserves

    601,847       1,357,947  

Net inventory

  $ 21,015,713     $ 20,176,142