Federal Home Loan Bank Advances and Other Borrowings (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Line of Credit Facility [Line Items]
FHLB amortizing balance maturing with a balloon in 2022	$ 2,400,000
Book value of eligible loans for collateral	202,600,000	217,400,000
Contractual maturities of FHLB advances [Abstract]
Due in 2013	15,060,000	15,000,000
Due in 2014	64,000	10,000,000
Due in 2015	68,000	0
Due in 2016	71,000	0
Due in 2017	5,076,000	0
Therafter	7,861,000	0
Total FHLB advances	28,200,000	25,000,000
Residential One-to-four Unit Single Family [Member]
Line of Credit Facility [Line Items]
Maximum amount of credit available as a percent of qualifying collateral (in hundredths)	88.00%
Home Equity [Member]
Line of Credit Facility [Line Items]
Maximum amount of credit available as a percent of qualifying collateral (in hundredths)	82.00%
Commercial Real Estate [Member]
Line of Credit Facility [Line Items]
Maximum amount of credit available as a percent of qualifying collateral (in hundredths)	74.00%
Federal Home Loan Bank Advances [Member]
Line of Credit Facility [Line Items]
Interest rate range, minimum (in hundredths)	2.06%	3.02%
Interest rate range, maximum (in hundredths)	4.46%	4.46%
Weighted average interest rate (in hundredths)	3.49%	3.92%
Maximum borrowing limit	118,600,000
FHLB outstanding includes amortizing balance	3,200,000
Federal Reserve Bank of Richmond [Member]
Contractual maturities of FHLB advances [Abstract]
Available federal funds purchased lines of credit	3,200,000
Line of Credit with Commercial Banks [Member]
Contractual maturities of FHLB advances [Abstract]
Number of commercial banks participating in federal funds purchased lines of credit	9
Available federal funds purchased lines of credit	66,500,000
Federal funds purchased lines of credit in use	$ 0