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Note 17 - Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Commitments to Extend Credit [Table Text Block]
(In thousands)   2016   2015
         
Loan commitments:                
Fixed rate   $
4,542
     $
4,007
  
Adjustable rate    
10,661
      
3,854
  
                 
Unused lines of credit on credit cards    
5,463
      
4,429
  
Undisbursed commercial and personal lines of credit    
32,125
      
29,359
  
Undisbursed portion of construction loans in process    
19,037
      
4,869
  
Undisbursed portion of home equity lines of credit    
33,490
      
26,910
  
                 
Total commitments to extend credit   $
105,318
     $
73,428