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Mortgage Loan Servicing and Loans Originating for Sale (Fair Value) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Servicing Asset at Fair Value, Amount [Roll Forward]    
Fair value, beginning of fiscal year $ 627 $ 470
Fair value, end of fiscal year 811 627
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]    
Allowance, beginning of fiscal year 168 248
Impairment recoveries (10) (80)
Allowance, end of fiscal year $ 158 $ 168
Weighted-average discount rate 9.11% 9.07%
Weighted-average prepayment speed 17.02% 19.68%