Loans, Allowance for Loan Losses and Credit Quality (Details Textual) (USD $)	3 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Tdrs Recorded Investment On Nonaccrual Status	$ 8,567,000	$ 6,554,000
Loans Allowance for Loan Losses and Credit Quality (Textual) [Abstract]
The amount of deferred fees	2,400,000	3,100,000
Significant advanced considered for risk rating change	$ 50,000
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Days to be termed as non accrual loans	90 days