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Inventories
9 Months Ended
Sep. 30, 2025
Inventory Disclosure [Abstract]  
Inventories

Note 6 Inventories

 

   September 30, 2025   December 31, 2024 
Raw materials  $922,000   $862,000 
Work in process   2,604,000    2,444,000 
Finished goods   5,154,000    5,187,000 
Total inventories  $8,680,000   $8,493,000