Loans (Details 8) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR	$ 7,626	$ 14,069
Total performing TDR	4,699	11,038
One-to-four family mortgages [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR	70	1,888
TDR in non-accrual status	(45)
Home equity line of credit [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR
TDR in non-accrual status		(100)
Junior lien [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR	86	196
TDR in non-accrual status
Multi-family [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR		234
TDR in non-accrual status
Construction [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR	4,112	4,112
TDR in non-accrual status
Land [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR	2,754	3,424
TDR in non-accrual status	(2,754)	(2,768)
Non-residential real estate [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR	368	3,173
TDR in non-accrual status		(44)
Farmland [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR		909
TDR in non-accrual status
Consumer loans [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR	4	5
TDR in non-accrual status
Commercial loans [Member]
Company's loans classified as Troubled Debt Restructurings (TDR's)
Total TDR	232	128
TDR in non-accrual status	$ (128)	$ (119)