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Loans and Allowance for Loan Losses (Impaired Loan Portfolio) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Financing Receivable, Impaired [Line Items] |  |
Impaired loans with a valuation allowance, Related Allowance | $ 631 | $ 534
Total impaired loans, Recorded Investment | 4,173 | 3,559
Total impaired loans, Unpaid Principal Balance | 4,570 | 3,652
Total impaired loans, Average Recorded Investment | 5,172 | 3,358
Total impaired loans, Interest Income Recognized | 113 | 111
All Other Loans [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans without a valuation allowance, Recorded Investment | 1,356 | 2,354
Impaired loans without a valuation allowance, Unpaid Principal Balance | 1,361 | 2,387
Impaired loans with a valuation allowance, Recorded Investment | 1,154 | 1,205
Impaired loans with a valuation allowance, Unpaid Principal Balance | 1,154 | 1,265
Impaired loans with a valuation allowance, Related Allowance | 475 | 534
Impaired loans without a valuation allowance, Average Recorded Investment | 1,774 | 2,420
Impaired loans without a valuation allowance, Interest Income Recognized | 52 | 71
Impaired loans with a valuation allowance, Average Recorded Investment | 870 | 927
Impaired loans with a valuation allowance, Interest Income Recognized | 34 | 40
All Other Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans without a valuation allowance, Recorded Investment | 256 | 636
Impaired loans without a valuation allowance, Unpaid Principal Balance | 261 | 648
Impaired loans with a valuation allowance, Recorded Investment | 0 | 0
Impaired loans with a valuation allowance, Unpaid Principal Balance | 0 | 0
Impaired loans with a valuation allowance, Related Allowance | 0 | 0
Impaired loans without a valuation allowance, Average Recorded Investment | 399 | 855
Impaired loans without a valuation allowance, Interest Income Recognized | 30 | 33
Impaired loans with a valuation allowance, Average Recorded Investment | 9 | 0
Impaired loans with a valuation allowance, Interest Income Recognized | 1 | 0
All Other Loans [Member] | Consumer Real Estate [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans without a valuation allowance, Recorded Investment | 553 | 1,073
Impaired loans without a valuation allowance, Unpaid Principal Balance | 553 | 1,089
Impaired loans with a valuation allowance, Recorded Investment | 994 | 163
Impaired loans with a valuation allowance, Unpaid Principal Balance | 994 | 205
Impaired loans with a valuation allowance, Related Allowance | 343 | 26
Impaired loans without a valuation allowance, Average Recorded Investment | 725 | 934
Impaired loans without a valuation allowance, Interest Income Recognized | 15 | 29
Impaired loans with a valuation allowance, Average Recorded Investment | 397 | 365
Impaired loans with a valuation allowance, Interest Income Recognized | 17 | 0
All Other Loans [Member] | Construction and Land Development [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans without a valuation allowance, Recorded Investment | 547 | 547
Impaired loans without a valuation allowance, Unpaid Principal Balance | 547 | 547
Impaired loans with a valuation allowance, Recorded Investment | 0 | 0
Impaired loans with a valuation allowance, Unpaid Principal Balance | 0 | 0
Impaired loans with a valuation allowance, Related Allowance | 0 | 0
Impaired loans without a valuation allowance, Average Recorded Investment | 619 | 547
Impaired loans without a valuation allowance, Interest Income Recognized | 5 | 0
Impaired loans with a valuation allowance, Average Recorded Investment | 11 | 0
Impaired loans with a valuation allowance, Interest Income Recognized | 0 | 0
All Other Loans [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans without a valuation allowance, Recorded Investment | 0 | 69
Impaired loans without a valuation allowance, Unpaid Principal Balance | 0 | 70
Impaired loans with a valuation allowance, Recorded Investment | 160 | 955
Impaired loans with a valuation allowance, Unpaid Principal Balance | 160 | 973
Impaired loans with a valuation allowance, Related Allowance | 132 | 442
Impaired loans without a valuation allowance, Average Recorded Investment | 20 | 69
Impaired loans without a valuation allowance, Interest Income Recognized | 1 | 6
Impaired loans with a valuation allowance, Average Recorded Investment | 430 | 476
Impaired loans with a valuation allowance, Interest Income Recognized | 16 | 37
All Other Loans [Member] | Consumer and Other [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans without a valuation allowance, Recorded Investment | 0 | 29
Impaired loans without a valuation allowance, Unpaid Principal Balance | 0 | 33
Impaired loans with a valuation allowance, Recorded Investment | 0 | 87
Impaired loans with a valuation allowance, Unpaid Principal Balance | 0 | 87
Impaired loans with a valuation allowance, Related Allowance | 0 | 66
Impaired loans without a valuation allowance, Average Recorded Investment | 11 | 15
Impaired loans without a valuation allowance, Interest Income Recognized | 1 | 3
Impaired loans with a valuation allowance, Average Recorded Investment | 23 | 86
Impaired loans with a valuation allowance, Interest Income Recognized | 0 | 3
Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans with a valuation allowance, Recorded Investment | 1,663 | 0
Impaired loans with a valuation allowance, Unpaid Principal Balance | 2,055 | 0
Impaired loans with a valuation allowance, Related Allowance | 156 | 0
Impaired loans with a valuation allowance, Average Recorded Investment | 2,528 | 11
Impaired loans with a valuation allowance, Interest Income Recognized | 27 | 0
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans with a valuation allowance, Recorded Investment | 17 | 0
Impaired loans with a valuation allowance, Unpaid Principal Balance | 99 | 0
Impaired loans with a valuation allowance, Related Allowance | 17 | 0
Impaired loans with a valuation allowance, Average Recorded Investment | 1,518 | 11
Impaired loans with a valuation allowance, Interest Income Recognized | (25) | 0
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans with a valuation allowance, Recorded Investment | 1,205 | 0
Impaired loans with a valuation allowance, Unpaid Principal Balance | 1,371 | 0
Impaired loans with a valuation allowance, Related Allowance | 74 | 0
Impaired loans with a valuation allowance, Average Recorded Investment | 922 | 0
Impaired loans with a valuation allowance, Interest Income Recognized | 42 | 0
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans with a valuation allowance, Recorded Investment | 0 | 0
Impaired loans with a valuation allowance, Unpaid Principal Balance | 0 | 0
Impaired loans with a valuation allowance, Related Allowance | 0 | 0
Impaired loans with a valuation allowance, Average Recorded Investment | 0 | 0
Impaired loans with a valuation allowance, Interest Income Recognized | 0 | 0
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans with a valuation allowance, Recorded Investment | 396 | 0
Impaired loans with a valuation allowance, Unpaid Principal Balance | 534 | 0
Impaired loans with a valuation allowance, Related Allowance | 59 | 0
Impaired loans with a valuation allowance, Average Recorded Investment | 79 | 0
Impaired loans with a valuation allowance, Interest Income Recognized | 9 | 0
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired loans with a valuation allowance, Recorded Investment | 45 | 0
Impaired loans with a valuation allowance, Unpaid Principal Balance | 51 | 0
Impaired loans with a valuation allowance, Related Allowance | 6 | 0
Impaired loans with a valuation allowance, Average Recorded Investment | 9 | 0
Impaired loans with a valuation allowance, Interest Income Recognized | $ 1 | $ 0

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