Deposits (Details) (USD $)	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Summary of Deposit Accounts with the Corresponding Weighted Average Cost of Funds [Abstract]
Checking (noninterest)	$ 31,427,000		$ 26,907,000
NOW (interest)	28,540,000		22,332,000
Savings	27,174,000		22,092,000
Money market	86,149,000		95,029,000
Time deposits	134,986,000		129,968,000
Escrow	3,807,000	[1]	3,669,000	[1]
Total deposits	312,083,000		299,997,000
Weighted Average Interest Rate [Abstract]
Checking (non-interest) Wtd Avg Rate (in hundredths)	0.00%		0.00%
NOW Wtd Avg Rate (in hundredths)	0.10%		0.09%
Savings Wtd Avg Rate (in hundredths)	0.08%		0.10%
Money market Wtd Avg Rate (in hundredths)	0.32%		0.58%
Time deposits Wtd Avg Rate (in hundredths)	1.33%		1.53%
Escrow Wtd Avg Rate (in hundredths)	0.00%	[1]	0.00%	[1]
Total Wtd Avg Rate (in hundredths)	0.69%		0.87%
Stated Maturities of Time Deposits [Abstract]
2013	73,477,000
2014	37,584,000
2015	6,738,000
2016	6,800,000
Thereafter	10,387,000
Total time deposits	134,986,000		129,968,000
Contractual Maturities [Abstract]
Maximum time to maturity of certificate accounts	5 years
Contractual Maturities of Time Deposits in denominations of $100,000 or More [Abstract]
Time deposits in denominations of $100,000 or more	82,500,000		74,900,000
Maximum federal insurability of time deposits	250,000
Related party deposits	$ 7,300,000		$ 7,300,000

[1] Escrow balances shown in noninterest-bearing deposits on the consolidated balance sheets