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Credit Quality and Nonperforming Assets - Past Due and Nonaccrual Loans - Tabular Disclosure (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019
--- | --- | --- | ---
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | $ 9,099 | $ 5,994 |
Current | 1,788,926 | 1,756,571 |
Total Financing Receivables | 1,798,025 | 1,762,565 | $ 1,750,989
Non-Accrual Loans | 7,351 | 5,737 |
Real Estate Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 7,879 | 5,550 |
Current | 1,393,309 | 1,396,564 |
Total Financing Receivables | 1,401,188 | 1,402,114 | 1,473,850
Non-Accrual Loans | 6,217 | 5,055 |
Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 464 | 0 |
Current | 94,114 | 105,979 |
Total Financing Receivables | 94,578 | 105,979 |
Non-Accrual Loans | 0 | 0 |
Real Estate Sector [Member] | Other construction/land [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 16 |
Current | 90,602 | 91,397 |
Total Financing Receivables | 90,602 | 91,413 |
Non-Accrual Loans | 10 | 31 |
Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 3,146 | 1,524 |
Current | 186,488 | 198,657 |
Total Financing Receivables | 189,634 | 200,181 |
Non-Accrual Loans | 866 | 741 |
Real Estate Sector [Member] | Equity Lines [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 263 | 265 |
Current | 48,273 | 49,334 |
Total Financing Receivables | 48,536 | 49,599 |
Non-Accrual Loans | 535 | 480 |
Real Estate Sector [Member] | Multi-Family Residential [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
Current | 58,238 | 54,457 |
Total Financing Receivables | 58,238 | 54,457 |
Non-Accrual Loans | 0 | 0 |
Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 1,033 | 1,640 |
Current | 301,901 | 342,243 |
Total Financing Receivables | 302,934 | 343,883 |
Non-Accrual Loans | 1,941 | 1,440 |
Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 2,760 | 2,105 |
Current | 472,166 | 410,464 |
Total Financing Receivables | 474,926 | 412,569 |
Non-Accrual Loans | 2,608 | 2,105 |
Real Estate Sector [Member] | Farmland [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 213 | 0 |
Current | 141,527 | 144,033 |
Total Financing Receivables | 141,740 | 144,033 |
Non-Accrual Loans | 257 | 258 |
Agricultural Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
Current | 49,199 | 48,036 |
Total Financing Receivables | 49,199 | 48,036 | 52,086
Non-Accrual Loans | 0 | 0 |
Commercial and Industrial Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 1,170 | 375 |
Current | 110,820 | 115,157 |
Total Financing Receivables | 111,990 | 115,532 |
Non-Accrual Loans | 1,116 | 651 |
Mortgage Warehouse Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
Current | 228,608 | 189,103 |
Total Financing Receivables | 228,608 | 189,103 |
Non-Accrual Loans | 0 | 0 |
Consumer Loans Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 50 | 69 |
Current | 6,990 | 7,711 |
Total Financing Receivables | 7,040 | 7,780 | $ 8,256
Non-Accrual Loans | 18 | 31 |
30-59 Days Past Due [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 4,636 | 2,945 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 3,977 | 2,730 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 464 | 0 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] | Other construction/land [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 16 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 2,349 | 485 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] | Equity Lines [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 122 | 177 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 196 | 1,552 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 633 | 500 |
30-59 Days Past Due [Member] | Real Estate Sector [Member] | Farmland [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 213 | 0 |
30-59 Days Past Due [Member] | Agricultural Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
30-59 Days Past Due [Member] | Commercial and Industrial Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 617 | 160 |
30-59 Days Past Due [Member] | Mortgage Warehouse Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
30-59 Days Past Due [Member] | Consumer Loans Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 42 | 55 |
60-89 Days Past Due [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 380 | 617 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 14 | 390 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] | Other construction/land [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 14 | 380 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] | Equity Lines [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 10 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
60-89 Days Past Due [Member] | Real Estate Sector [Member] | Farmland [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
60-89 Days Past Due [Member] | Agricultural Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
60-89 Days Past Due [Member] | Commercial and Industrial Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 358 | 215 |
60-89 Days Past Due [Member] | Mortgage Warehouse Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
60-89 Days Past Due [Member] | Consumer Loans Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 8 | 12 |
90 Days Or More Past Due [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 4,083 | 2,432 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 3,888 | 2,430 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] | Other construction/land [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 783 | 659 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] | Equity Lines [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 141 | 78 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 837 | 88 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 2,127 | 1,605 |
90 Days Or More Past Due [Member] | Real Estate Sector [Member] | Farmland [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
90 Days Or More Past Due [Member] | Agricultural Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
90 Days Or More Past Due [Member] | Commercial and Industrial Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 195 | 0 |
90 Days Or More Past Due [Member] | Mortgage Warehouse Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | 0 | 0 |
90 Days Or More Past Due [Member] | Consumer Loans Sector [Member] |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |
Total Past Due | $ 0 | $ 2 |

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