XML 49 R40.htm IDEA: XBRL DOCUMENT
v3.22.1

Loans - Age Analysis of Past Due Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 1,354,032 | $ 1,337,977
Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,093,513 | 1,004,204
Nonaccrual Loans | 4,981 | 3,952
Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 260,519 | 333,773
Nonaccrual Loans | 1,190 | 1,497
30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,601 | 938
30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 827 | 3,629
90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,601 | 938
Total Accruing Loans Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 827 | 3,629
Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,086,931 | 999,314
Current Loans | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 258,502 | 328,647
Construction, land and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 170,911 | 165,446
Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 802,995 | 787,392
Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 973,906 | 952,838
Commercial real estate | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 801,137 | 715,692
Nonaccrual Loans | 1,403 | 577
Commercial real estate | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 172,769 | 237,146
Nonaccrual Loans | 125 | 291
Commercial real estate | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 868 | 355
Commercial real estate | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 2,680
Commercial real estate | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 868 | 355
Commercial real estate | Total Accruing Loans Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 2,680
Commercial real estate | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 798,866 | 714,760
Commercial real estate | Current Loans | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 172,644 | 234,175
Commercial real estate | Construction, land and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 170,911 | 165,446
Commercial real estate | Construction, land and land development | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 147,306 | 119,953
Nonaccrual Loans | 67 | 0
Commercial real estate | Construction, land and land development | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 23,605 | 45,493
Nonaccrual Loans | 0 | 31
Commercial real estate | Construction, land and land development | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 109 | 6
Commercial real estate | Construction, land and land development | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 2,680
Commercial real estate | Construction, land and land development | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | Construction, land and land development | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | Construction, land and land development | Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 109 | 6
Commercial real estate | Construction, land and land development | Total Accruing Loans Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 2,680
Commercial real estate | Construction, land and land development | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 147,130 | 119,947
Commercial real estate | Construction, land and land development | Current Loans | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 23,605 | 42,782
Commercial real estate | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 802,995 | 787,392
Commercial real estate | Other commercial real estate | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 653,831 | 595,739
Nonaccrual Loans | 1,336 | 577
Commercial real estate | Other commercial real estate | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 149,164 | 191,653
Nonaccrual Loans | 125 | 260
Commercial real estate | Other commercial real estate | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 759 | 349
Commercial real estate | Other commercial real estate | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | Other commercial real estate | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | Other commercial real estate | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | Other commercial real estate | Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 759 | 349
Commercial real estate | Other commercial real estate | Total Accruing Loans Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | Other commercial real estate | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 651,736 | 594,813
Commercial real estate | Other commercial real estate | Current Loans | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 149,039 | 191,393
Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 207,686 | 212,527
Residential real estate | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 149,215 | 159,469
Nonaccrual Loans | 2,978 | 2,641
Residential real estate | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 58,471 | 53,058
Nonaccrual Loans | 1,061 | 1,198
Residential real estate | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 278 | 421
Residential real estate | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 598 | 560
Residential real estate | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Residential real estate | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Residential real estate | Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 278 | 421
Residential real estate | Total Accruing Loans Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 598 | 560
Residential real estate | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 145,959 | 156,407
Residential real estate | Current Loans | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 56,812 | 51,300
Commercial, financial & agricultural |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 154,238 | 154,048
Commercial, financial & agricultural | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 126,373 | 113,040
Nonaccrual Loans | 578 | 708
Commercial, financial & agricultural | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 27,865 | 41,008
Nonaccrual Loans | 0 | 0
Commercial, financial & agricultural | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 437 | 69
Commercial, financial & agricultural | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 226 | 389
Commercial, financial & agricultural | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial, financial & agricultural | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial, financial & agricultural | Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 437 | 69
Commercial, financial & agricultural | Total Accruing Loans Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 226 | 389
Commercial, financial & agricultural | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 125,358 | 112,263
Commercial, financial & agricultural | Current Loans | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 27,639 | 40,619
Consumer and other |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 18,202 | 18,564
Consumer and other | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 16,788 | 16,003
Nonaccrual Loans | 22 | 26
Consumer and other | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,414 | 2,561
Nonaccrual Loans | 4 | 8
Consumer and other | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 18 | 93
Consumer and other | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3 | 0
Consumer and other | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Consumer and other | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Consumer and other | Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 18 | 93
Consumer and other | Total Accruing Loans Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3 | 0
Consumer and other | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 16,748 | 15,884
Consumer and other | Current Loans | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 1,407 | $ 2,553

X
- Definition Amount excluding accrued interest, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetOriginatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditLossStatusAxis=cban_FinancialAssetsAcquiredMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=cban_FinancingReceivables3089DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cban_ConstructionLandAndLandDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cban_OtherCommercialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=cban_CommercialFinancialAndAgriculturalPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=cban_ConsumerAndOtherPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |