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Note 12 - Future Minimum Lease Payments (Tables)
9 Months Ended
Sep. 30, 2018
Notes Tables  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
2019
  $
3,984,380
 
2020
   
3,707,514
 
2021
   
3,390,129
 
2022
   
2,981,333
 
2023
   
2,845,180
 
Thereafter
   
16,592,614
 
         
Total
  $
33,501,150