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Note 20 - Litigation, Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]
   
December 31,
 
   
2017
   
2016
 
(Amounts in thousands)
 
 
 
 
 
 
 
 
Commitments to extend credit
  $
243,147
    $
261,801
 
Standby letters of credit and financial guarantees
(1)
   
131,587
     
83,900
 
Total off-balance sheet risk
   
374,734
     
345,701
 
                 
Reserve for unfunded commitments
  $
66
    $
326