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Allowance for Loan Losses - Allowance and Loans by Impairment Methodology (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | $ 879 | $ 267 |  |
Collectively evaluated for impairment | 38,277 | 32,606 |  |
Total allowance | 39,156 | 32,873 | $ 34,023 | $ 35,726
Loans: |  |  |  |
Individually evaluated for impairment | 6,278 | 5,274 |  |
Collectively evaluated for impairment | 1,339,769 | 1,109,212 |  |
Acquired loans - PCI | 6,359 | 705 |  |
Total loans | 1,352,406 | 1,115,191 |  |
Real estate - residential mortgage |  |  |  |
Allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 77 | 72 |  |
Collectively evaluated for impairment | 2,837 | 2,008 |  |
Total allowance | 2,914 | 2,080 | 2,246 | 2,371
Loans: |  |  |  |
Individually evaluated for impairment | 2,210 | 3,671 |  |
Collectively evaluated for impairment | 214,615 | 177,517 |  |
Acquired loans - PCI | 1,473 | 107 |  |
Total loans | 218,298 | 181,295 |  |
Real estate - construction |  |  |  |
Allowance balance attributable to loans: |  |  |  |
Collectively evaluated for impairment | 975 | 681 |  |
Total allowance | 975 | 681 | 727 | 605
Loans: |  |  |  |
Collectively evaluated for impairment | 62,147 | 54,246 |  |
Total loans | 62,147 | 54,246 |  |
Commercial, financial and agricultural |  |  |  |
Allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 674 | 77 |  |
Collectively evaluated for impairment | 10,022 | 7,044 |  |
Total allowance | 10,696 | 7,121 | 6,688 | 7,478
Loans: |  |  |  |
Individually evaluated for impairment | 3,825 | 1,451 |  |
Collectively evaluated for impairment | 691,632 | 498,798 |  |
Acquired loans - PCI | 4,758 | 563 |  |
Total loans | 700,215 | 500,812 |  |
Equity lines |  |  |  |
Allowance balance attributable to loans: |  |  |  |
Collectively evaluated for impairment | 687 | 733 |  |
Total allowance | 687 | 733 | 1,106 | 688
Loans: |  |  |  |
Individually evaluated for impairment | 111 | 31 |  |
Collectively evaluated for impairment | 48,275 | 52,017 |  |
Acquired loans - PCI | 80 | 35 |  |
Total loans | 48,466 | 52,083 |  |
Consumer |  |  |  |
Allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 128 | 118 |  |
Collectively evaluated for impairment | 243 | 347 |  |
Total allowance | 371 | 465 | 257 | 231
Loans: |  |  |  |
Individually evaluated for impairment | 132 | 121 |  |
Collectively evaluated for impairment | 10,848 | 13,635 |  |
Acquired loans - PCI | 48 |  |  |
Total loans | 11,028 | 13,756 |  |
Consumer finance |  |  |  |
Allowance balance attributable to loans: |  |  |  |
Collectively evaluated for impairment | 23,513 | 21,793 |  |
Total allowance | 23,513 | 21,793 | $ 22,999 | $ 24,353
Loans: |  |  |  |
Collectively evaluated for impairment | 312,252 | 312,999 |  |
Total loans | $ 312,252 | $ 312,999 |  |

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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 + Details
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