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Note 15 - Leases (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
2020
  $
396,034
 
2021
   
600,362
 
2022
   
368,467
 
2023
   
402,078
 
2024
   
404,258
 
Thereafter
   
982,880
 
Total undiscounted cash flows under leases
   
3,154,079
 
Less: Imputed interest
   
(449,481
)
Present value of lease liabilities
  $
2,704,598