Borrowings - Maximum and Average Outstanding Balances and Average Interest Rates (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2014
Federal Home Loan Bank, Long-term, Fixed-rate Advance Agreements
Federal Home Loan Bank, Advances, Activity for Year [Abstract]
Maximum outstanding at any month-end	$ 89,924	$ 99,924	$ 89,924	$ 99,924	$ 99,924
Monthly average outstanding	89,924	99,924	89,924	99,924	96,591
Interest expense during period	733	826	1,467	1,652	3,163
Weighted-average interest rates, Annual	3.24%	3.28%	3.24%	3.28%	3.26%
Weighted-average interest rates, Period End	3.24%	3.28%	3.24%	3.28%	3.24%
Federal Home Loan Bank Advances \| Federal Home Loan Bank, Short-term, Variable-rate Revolving Advance (CMA)
Federal Home Loan Bank, Advances, Activity for Year [Abstract]
Maximum outstanding at any month-end	1,000	0	1,000	0	31,000
Monthly average outstanding			167	0	7,967
Interest expense during period			$ 1	$ 0	$ 24
Weighted-average interest rates, Annual			0.30%	0.00%	0.29%
Weighted-average interest rates, Period End	0.27%	0.00%	0.27%	0.00%	0.30%

Federal Home Loan Bank, Advances, Activity for Year, Monthly Average Outstanding

No definition available.

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- Details

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- Definition

The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13(3)(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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- Definition

The calculated weighted average interest rate for Federal Home Loan Bank advances for the period ended as of the Balance Sheet date.

+ References

+ Details

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- Definition

The maximum balance outstanding at any month end during the period as of the Balance Sheet date.

+ References

+ Details

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- Definition

Interest expense incurred during the reporting period on short-term borrowings associated with Federal Home Loan Bank and Federal Reserve Bank advances.

+ References

No definition available.

+ Details

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