Loans (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Loan Disclosure	Impaired loans consist primarily of nonaccrual loans, loans greater than 90 days past due and still accruing interest and troubled debt restructurings, both performing and non-performing. Troubled debt restructuring involves the granting of a concession to a borrower experiencing financial difficulty resulting in the modification of terms of the loan, such as changes in payment schedule or interest rate.
Accruing Interest On Nonrecurring Loan	$ 0	$ 29,000
Loans Classified As Troubled Debt Restructuring	0	4,479,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets	1,322,000
Received From Nonaccrual Loan	4,115,000
Nonperforming Loans Nonaccrual	4,198,000
Nonaccrual Loan Charged Off	83,000
Impaired Financing Receivable, Related Allowance for Loan Losses	1,404,000	1,066,000
Nonaccrual Loans	6,572,000	1,709,000
Financing Receivable, Modifications, Pre-Modification Recorded Investment		4,486,000
Impaired Financing Receivable, Average Recorded Investment	5,451,000	5,276,000	1,130,000
Income Recognized On Nonaccrual Loans Under Original Terms Of Contract	381,000	10,700	83,000
Income Recognized On Nonaccrual Loans	141,000	102,000	35,000
Impaired Loans Fair Value	5,168,000	5,151,000
Decrease In Loans To Affiliates	19,000
Due from Affiliates	$ 578,000	$ 559,000