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Fair Value Measurements (Narrative) (Details) - USD ($)
Mar. 31, 2016
Jun. 30, 2015
Mar. 31, 2015
Level 1 to Level 2 transfers, assets amount $ 0   $ 0
Level 2 to Level 1 transfers, assets amount 0   0
Level 1 to Level 2 transfers, liabilities amount 0   0
Level 2 to Level 1 transfers, liabilities amount 0   0
Liabilities measured at fair value on recurring basis 0   0
Liabilities measured at fair value on nonrecurring basis 0   0
Assets measured at fair value on recurring basis using significant unobservable inputs $ 0   $ 0
Subordinated Notes Due April 15, 2030 [Member]      
Long-term borrowings   $ 40,000,000