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Note 8 - Notes Payable (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
   
December 31, 2019
   
December 31, 2018
 
RBL Capital Group, LLC
  $
9,431,157
    $
6,512,268
 
Less: deferred loan costs
   
(179,610
)    
(132,774
)
Subtotal
   
9,251,547
     
6,379,494
 
Less: current portion
   
(909,086
)    
(433,448
)
Long term debt
  $
8,342,461
    $
5,946,046
 
Schedule of Maturities of Long-term Debt [Table Text Block]
2020
  $
909,086
 
2021
   
2,022,338
 
2022
   
2,328,727
 
2023
   
3,413,139
 
2024
   
757,866
 
Balance December 31, 2019
  $
9,431,157