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Impaired Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | $ 3,296 | $ 3,630
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (1,135) | (1,094)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 2,161 | 2,536
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 221 | 227
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (21) | (21)
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 200 | 206
Impaired Financing Receivable, With Related Allowance, Related Allowance | 36 | 42
Impaired Financing Receivable, Unpaid Principal Balance | 3,517 | 3,857
Impaired Financing Receivable, Charge-off And Payments Applied | (1,156) | (1,115)
Impaired Financing Receivable, Recorded Investment | 2,361 | 2,742
Impaired Financing Receivable, Related Allowance | 36 | 42
Commercial and Industrial Loans [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance |  | 0
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment |  | 0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 51 |
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | (21) |
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 30 |
Impaired Financing Receivable, With Related Allowance, Related Allowance | 30 |
Construction And Land Development Loans [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance |  | 0
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied |  | 0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment |  | 0
Commercial Real Estate Owner Occupied Loans [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 170 | 175
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | 0 | 0
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 170 | 175
Impaired Financing Receivable, With Related Allowance, Related Allowance | 6 | 11
Commercial Real Estate Other Loans [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 3,296 | 3,630
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (1,135) | (1,094)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 2,161 | 2,536
Commercial Real Estate Loans, Total [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance | 3,296 | 3,630
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied | (1,135) | (1,094)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 2,161 | 2,536
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | 170 | 175
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied | 0 | 0
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 170 | 175
Impaired Financing Receivable, With Related Allowance, Related Allowance | $ 6 | $ 11

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