Credit Quality of Loans and the Allowance for Loan Losses (Schedule of Non-accrual Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 1,876	$ 3,186
One-to-four family residential loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	1,449	2,740
Nonresidential real estate and land Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 346	$ 350
All other mortgage loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans
Commercial business loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 81	$ 96
Consumer loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans