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Note 10 - Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2018
Notes Tables  
Summary Of Financial Instrument Outstanding [Table Text Block]
   
Contract Amount
 
   
September 30, 2018
   
December 31, 2017
 
                 
Loan Commitments
 
$
100,518
    $
96,374
 
Letters of Credit
 
 
1,435
     
1,536