Loans and Allowance for Loan Losses (Details 8) (USD $)	Jun. 30, 2012 Contract
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	1
Recorded Principal Balance	$ 51,000
Total commercial [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	1
Recorded Principal Balance	51,000
Total commercial [Member] | Commercial and industrial [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	1
Recorded Principal Balance	51,000
Total commercial [Member] | Vacant land, land development and residential construction [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	0
Recorded Principal Balance	0
Total commercial [Member] | Real estate - owner occupied [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	0
Recorded Principal Balance	0
Total commercial [Member] | Real estate-non-owner occupied [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	0
Recorded Principal Balance	0
Total commercial [Member] | Real estate - multi-family and residential rental [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	0
Recorded Principal Balance	0
Total retail [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	0
Recorded Principal Balance	0
Total retail [Member] | Home equity and other [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	0
Recorded Principal Balance	0
Total retail [Member] | 1 - 4 family mortgages [Member]
Loans, modified as troubled debt restructurings within the previous twelve months
Number of Contracts	0
Recorded Principal Balance	$ 0