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Note 4 - Accounts Receivable (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Schedule of Receivables with Imputed Interest [Table Text Block]
   
September 30,
   
December 31,
 
   
2019
   
2018
 
                 
Trade accounts
  $
3,490,653
    $
3,621,695
 
Premiums
   
2,015,306
     
890,974
 
Anticipated salvage and subrogation
   
-
     
2,340
 
Allowance for doubtful accounts
   
(128,010
)    
(50,565
)
                 
Total Accounts Receivable, net
  $
5,377,949
    $
4,464,444