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Note 11 - Related Party Transactions (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
   
Amount
 
2022
  $
41,480
 
2023
   
28,618
 
2024
   
32,348
 
2025
   
32,348
 
2026
   
32,348
 
Thereafter
   
48,522
 
         
Total lease payments
  $
215,664
 
Less imputed interest
   
45,495
 
Present value of lease liability
  $
170,169