Loans and Allowance for Loan Losses (Details Textual) (USD $)	6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Description Of Bank's Loan Grading Process	The Bank''''s loan grading process is as follows: All loans are assigned a loan grade at the time of origination by the relationship manager. Typically, a loan is assigned a loan grade of "pass" at origination. Loans greater than or equal to $500 thousand are reviewed by the Bank''''s internal loan review department within 90 days of origination. Loan relationships greater than or equal to $1 million are reviewed annually by the internal loan review department. The Bank''''s internal loan review department samples approximately 25 percent of all other loans less than $1 million on an annual basis for review. If a loan is delinquent 60 days or more or a pattern of delinquency exists the loan will be selected for review. Generally, all loans on the Bank''''s internal watchlist are reviewed annually by internal loan review. The Bank also contracts with an independent third party to perform loan reviews. This external party reviews approximately 40 percent of the Bank''''s loan portfolio annually.
Financing Receivable, Modifications, Recorded Investment	$ 7,329,000	$ 5,026,000