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Impaired Loans Averages (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Impaired Financing Receivable, Average Recorded Investment [Line Items]    
Impaired Financing Receivable, Average Recorded Investment $ 32 $ 1,320
Impaired Financing Receivable, Interest Income, Accrual Method 9 9
Commercial and Industrial Loans [Member]    
Impaired Financing Receivable, Average Recorded Investment [Line Items]    
Impaired Financing Receivable, Average Recorded Investment 8 9
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 24 166
Impaired Financing Receivable, Interest Income, Accrual Method 9 9
Commercial Real Estate Other Loans [Member]    
Impaired Financing Receivable, Average Recorded Investment [Line Items]    
Impaired Financing Receivable, Average Recorded Investment   1,145
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 24 1,311
Impaired Financing Receivable, Interest Income, Accrual Method $ 9 $ 9