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Note 4 - Inventories (Tables)
6 Months Ended
Jun. 30, 2024
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

June 30, 2024

  

December 31, 2023

 
         

Dental finished goods

 $3,282,009  $2,404,970 

Medical finished goods

  -   14,730 

Component parts and other materials

  47,092   218,486 

Total inventories

 $3,329,101  $2,638,186