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Note 9 - Borrowings (Tables)
 12 Months Ended
Jun. 30, 2017
Notes Tables  
Schedule of Debt [Table Text Block]
    June 30, 2017   June 30, 2016  
(dollars in thousands)       Weighted       Weighted  
    Amount   Average Rate   Amount   Average Rate  
Short-term borrowings                                  
FHLB advances   $
40,000
      
1.12
 %   $
40,000
      
0.42
 %