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Note 2 - Leases (Tables)
6 Months Ended
Jun. 30, 2020
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
2020 (six months)
  $
172,409
 
2021
   
343,423
 
2022
   
351,334
 
2023
   
357,695
 
2024
   
356,250
 
Thereafter
   
1,469,679
 
Total minimum lease payments
   
3,050,790
 
Less imputed interest
   
(525,718
)
Total lease liabilities
  $
2,525,072