Credit Quality of Loans and the Allowance for Loan Losses (Schedule of Non-accrual Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 2,546	$ 3,186
One-to-four family residential loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	2,113	2,740
Nonresidential real estate and land Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	352	350
Commercial business loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 81	$ 96