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Note 6 - Property, Plant and Equipment, Net (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  September 30,   December 31,  
  

2022

  

2021

 

Land

 $231,034  $231,034 

Buildings and improvements

  3,259,845   2,961,431 

Machinery & equipment

  22,971,968   21,612,759 

Total property, plant & equipment

  26,462,847   24,805,224 

Less: accumulated depreciation

  10,929,089   9,196,022 

Property plant & equipment, net

 $15,533,758  $15,609,202