Non-Performing Loans and Impaired Loans (Details Textual) (USD $)	9 Months Ended
	Sep. 30, 2012
Non - Performing Loans and Impaired Loans (Textual) [Abstract]
Restructured loan reported in TDRs	8,400,000
Specific reserves allocated to troubled debt restructuring	1,300,000
Loans with an aggregate credit exposure	500,000
Restructured loan returned to accruing status number of Consecutive Payments Of loan	6
Maximum [Member]
Financing Receivable, Modifications [Line Items]
Delay or shortfall in payments of loan	30 days or more
Minimum [Member]
Financing Receivable, Modifications [Line Items]
Period for loans moved to non accrual status	90 days or more
Performing Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Restructured loan	3,400,000
Good Pass [Member]
Financing Receivable, Modifications [Line Items]
Number of consecutive years of profit for Good Pass Rating	3 years
Number of consecutive years of profit Unaudited Financial Information for Good Pass Rating	5 years
Number of years of Satisfactory Relationship with bank for Good Pass Rating	5 years
Satisfactory Pass [Member]
Financing Receivable, Modifications [Line Items]
Number of years of Satisfactory Repayment for Good Pass Rating, Minimum	2 years