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Note 6 - Loans Payable (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Maturities of Long-term Debt [Table Text Block]
Years Ending December 31,
       
2021
  $
99,913
 
2022
   
545,562
 
2023
   
172,295
 
2024
   
179,046
 
2025
   
186,063
 
Thereafter
   
3,976,954
 
Total
  $
5,159,833