Loans and the Allowance for Loan Losses (Details 4) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 5,359	$ 5,808
One-to-four family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	2,202	2,433
All other mortgage loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	3,102	3,271
Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	47	92
Consumer loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 8	$ 12