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INVESTMENT SECURITIES (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]      
Realized investment security gains $ 0 $ 31 $ 0
Proceeds from investment securities 0 6,400 $ 0
Investment securities pledged, amortized cost 4,100 3,500  
Investment securities pledged, fair value $ 4,200 $ 3,700