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Impaired Loans Averages (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Impaired Financing Receivable, Average Recorded Investment [Line Items]        
Impaired Financing Receivable, Average Recorded Investment $ 0 $ 865 $ 31 $ 1,668
Impaired Financing Receivable, Interest Income, Accrual Method 0 2 9 7
Commercial and Industrial Loans [Member]        
Impaired Financing Receivable, Average Recorded Investment [Line Items]        
Impaired Financing Receivable, Average Recorded Investment   0   12
Impaired Financing Receivable, Interest Income, Accrual Method   0   0
Commercial Real Estate Owner Occupied Loans [Member]        
Impaired Financing Receivable, Average Recorded Investment [Line Items]        
Impaired Financing Receivable, Average Recorded Investment 0 164 31 168
Impaired Financing Receivable, Interest Income, Accrual Method 0 2 9 7
Commercial Real Estate Other Loans [Member]        
Impaired Financing Receivable, Average Recorded Investment [Line Items]        
Impaired Financing Receivable, Average Recorded Investment   701   1,488
Impaired Financing Receivable, Interest Income, Accrual Method       0
Commercial Real Estate Loans, Total [Member]        
Impaired Financing Receivable, Average Recorded Investment [Line Items]        
Impaired Financing Receivable, Average Recorded Investment 0 865 31 1,656
Impaired Financing Receivable, Interest Income, Accrual Method $ 0 $ 2 $ 9 $ 7