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Note 15 - Leases (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]

2021

 $150,774 

2022

  627,731 

2023

  669,048 

2024

  678,627 

2025

  406,994 

Thereafter

  575,887 

Total undiscounted cash flows under leases

  3,109,061 

Less: Imputed interest

  (341,124)

Present value of lease liabilities

 $2,767,937