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Note 15 - Financial Instruments With Off-balance Sheet Risk (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Commitment to Extended Credit [Table Text Block]
(In thousands)
  
As of December 31,
 
 
  
2016
    
2015
  
Commitments to extend credit:
 
 
 
 
 
 
 
 
Unused lines of credit
   $
39,063
     
22,497
 
Undisbursed construction loans
    
21,224
     
21,337
 
Home equity lines of credit
    
20,846
     
25,588
 
Future loan commitments
    
15,755
     
14,912
 
Financial standby letters of credit
    
1,482
     
1,882
 
    $
98,370
     
86,216