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Loans and Allowance for Loan Losses (Details 6) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual past due loans $ 1,547 $ 3,361
Commercial and Industrial [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual past due loans 4 38
Commercial Real Estate [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual past due loans 931 2,652
Residential Real Estate [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual past due loans $ 612 $ 671