Fair Values of Financial Instruments (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Recorded Investment	$ 4,100,000	$ 652,000
Related Allowance	1,400,000	164,000
Other Real Estate and Foreclosed Assets	45,000
Real Estate, Gross	50,000
Write-down of foreclosed real estate	5,000
Commercial Real Estate Loan Discounting Rate	10.00%
Provision for loan losses	2,154,000	420,000
Unpaid Principal Balance	2,665,000	533,000
Percentage Of Weighted Average Discount On Impaired Commercial Real Estate Loans	11.00%
Loans Held-for-sale, Commercial, Real Estate	354,000
Standby Letters Of Credit	189,000	245,000
Impaired Loans [Member]
Provision for loan losses	$ 1,400,000	$ 143,000
United States Department Of Agriculture [Member]
Percentage Of Commercial Real Estate Loan Principal Balance Outstanding Guarantee By Third Party	90.00%
Maximum [Member]
Derivative, Fixed Interest Rate	5.25%
Minimum [Member]
Derivative, Fixed Interest Rate	3.25%