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Note 2 - Investments (Tables)
12 Months Ended
Jun. 30, 2016
Notes Tables  
Investment [Table Text Block]
    June 30, 2016   June 30, 2015  
    Carrying Cost   Fair Value   Carrying Cost   Fair Value  
    (in thousands)  
Federal Reserve Bank Stock   $ 1,955     $ 1,955     $ 1,955     $ 1,955    
Federal Home Loan Bank Stock     1,886       1,886       1,260       1,260    
Mortgage-backed investment     116       131       119       134    
    $ 3,957     $ 3,972     $ 3,334     $ 3,349