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Note 5 - Goodwill and Other Intangible Assets, Net (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   
March 31,
20
20
   
December 31,
20
19
 
Customer list intangibles
  $
7,670,000
    $
4,970,000
 
Non-compete agreements
   
200,000
     
200,000
 
Trademarks
   
2,040,000
     
340,000
 
Total intangible assets
   
9,910,000
     
5,510,000
 
Less: accumulated amortization
   
1,738,502
     
1,559,162
 
Intangible assets, net
  $
8,171,498
    $
3,950,838