Loans (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Non-accrual loans
Total non-accrual loans	$ 7,036	$ 7,663	$ 11,216
One-to-four family mortgages [Member]
Non-accrual loans
Total non-accrual loans	1,883	2,243	2,294
Home equity line of credit [Member]
Non-accrual loans
Total non-accrual loans	66	66	100
Junior lien [Member]
Non-accrual loans
Total non-accrual loans	3	4
Multi-family [Member]
Non-accrual loans
Total non-accrual loans		38
Construction [Member]
Non-accrual loans
Total non-accrual loans	177
Land [Member]
Non-accrual loans
Total non-accrual loans	1,496	2,768	5,042
Non-residential real estate [Member]
Non-accrual loans
Total non-accrual loans	2,754	1,782	3,630
Consumer loans [Member]
Non-accrual loans
Total non-accrual loans	65	145	18
Commercial loans [Member]
Non-accrual loans
Total non-accrual loans	$ 592	$ 617	$ 132