Note 15 - Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Summary Of Financial Instrument Outstanding [Table Text Block]
 
 
Contract Amount
 
 
 
201
6
 
  
2015
  
                 
Commitments to Extend Credit
 
$
71,359,000
 
   $
67,889,000
  
Standby Letters of Credit
 
 
1,551,000
 
    
1,588,212