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Note 22 - Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
201
7
    
201
6
    
201
5
  
                         
Numerator
  
 
 
 
  
 
 
 
  
 
 
 
Net Income Available to Common Stockholders
  
$
7,540,378
     $
7,179,900
     $
5,997,687
  
                         
Denominator
  
 
 
 
  
 
 
 
  
 
 
 
Weighted Average Number of Common Shares
Outstanding for Basic Earnings Per Common Share
  
 
8,439,258
      
8,439,258
      
8,439,258
  
Dilutive Effect of Potential Common Stock
                        
Stock Warrants
  
 
194,323
      
74,037
      
19,203
  
Weighted-Average Number of Shares Outstanding for
D
iluted Earnings Per Common Share
 
 
8,633,581
      
8,513,295
      
8,458,461
  
                         
Earnings
Per Share - Basic
  
$
0.89
     $
0.85
     $
0.71
  
                         
Earnings
Per Share - Diluted
  
$
0.87
     $
0.84
     $
0.71