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Note 1 - Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2018
Notes Tables  
Estimated Useful Lives and Methods of Depreciation [Table Text Block]
      Description
 
Life in Years
 
Method
Banking Premises
 
 15
-
40
 
Straight-Line and Accelerated
Furniture and Equipment
 
 5
-
10
 
Straight-Line and Accelerated