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Note 5 - Goodwill and Other Intangible Assets, Net (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   
September
30,
2019
   
December 31,
2018
 
Customer list intangibles
  $
4,970,000
    $
4,970,000
 
Non-compete agreements
   
200,000
     
200,000
 
Trademarks
   
340,000
     
340,000
 
Total intangible assets
   
5,510,000
     
5,510,000
 
Less: accumulated amortization
   
1,458,572
     
1,177,798
 
Intangible assets, net
  $
4,051,428
    $
4,332,202