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Mortgage Loan Servicing and Loans Originating for Sale (Future Amortization) (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Transfers and Servicing [Abstract]      
2015 $ 212    
2016 180    
2017 146    
2018 118    
2019 95    
Thereafter 247    
Total estimated amortization expense $ 998 $ 897 $ 795