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Loans and Allowance for Loan Losses - Past Due Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual restructured loans | $ 4,739 | $ 5,633
Total Past Due | 10,427 | 8,235
Current Loans | 2,447,554 | 2,341,944
Total loans | 2,487,129 | 2,382,243
Financial Asset, 30 to 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 2,845 | 2,321
Financial Asset, 60 to 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 1,348 | 132
Past Due 90 Days or More and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 1,495 | 149
Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual restructured loans | 3,155 | 3,740
Total Past Due | 5,215 | 3,941
Current Loans | 1,051,549 | 992,912
Total loans | 1,070,641 | 1,012,976
Commercial Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 565 | 134
Commercial Real Estate [Member] | Past Due 90 Days or More and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 1,495 | 67
Consumer Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual restructured loans | 1,481 | 1,823
Total Past Due | 3,785 | 3,872
Current Loans | 419,104 | 429,800
Total loans | 432,486 | 443,930
Consumer Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 968 | 1,916
Consumer Real Estate [Member] | Financial Asset, 60 to 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 1,336 | 51
Consumer Real Estate [Member] | Past Due 90 Days or More and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing |  | 82
Construction and Land Development [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual restructured loans | 11 | 12
Total Past Due | 654 | 257
Current Loans | 279,969 | 272,470
Total loans | 285,973 | 278,075
Construction and Land Development [Member] | Financial Asset, 30 to 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 643 | 245
Commercial and Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual restructured loans | 60 | 36
Total Past Due | 738 | 124
Current Loans | 684,969 | 634,014
Total loans | 686,010 | 634,446
Commercial and Industrial [Member] | Financial Asset, 30 to 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 666 | 12
Commercial and Industrial [Member] | Financial Asset, 60 to 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 12 | 76
Consumer and Other [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual restructured loans | 32 | 22
Total Past Due | 35 | 41
Current Loans | 11,963 | 12,748
Total loans | 12,019 | 12,816
Consumer and Other [Member] | Financial Asset, 30 to 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing | 3 | 14
Consumer and Other [Member] | Financial Asset, 60 to 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past due and accruing |  | 5
Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 29,148 | 32,064
Total loans | 29,148 | 32,064
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 13,877 | 16,123
Total loans | 13,877 | 16,123
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 9,597 | 10,258
Total loans | 9,597 | 10,258
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 5,350 | 5,348
Total loans | 5,350 | 5,348
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 303 | 308
Total loans | 303 | 308
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 21 | 27
Total loans | $ 21 | $ 27

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