XML 36 R25.htm IDEA: XBRL DOCUMENT v3.21.1
Note 6 - Property, Plant and Equipment, Net (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
March 31,
2021
   
December 31,
2020
 
                 
Land
  $
228,872
    $
228,872
 
Buildings and improvements
   
2,434,882
     
2,061,887
 
Machinery & equipment
   
20,251,375
     
14,329,462
 
Total property, plant & equipment
   
22,915,129
     
16,620,221
 
Less: accumulated depreciation
   
7,628,872
     
5,329,438
 
Property plant & equipment, net
  $
15,286,257
    $
11,290,783