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Investment Securities (Details 2) - USD ($)
$ in Thousands
Dec. 31, 2018
Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]    
Amortized Cost $ 91,334 $ 95,033
Gross Unrealized Gains 588 479
Gross Unrealized (Losses) (303) (777)
Estimated Fair Value 91,619 94,735
Carrying Value $ 91,553 $ 95,309