XML 53 R43.htm IDEA: XBRL DOCUMENT
v3.24.3

Loans - Schedule of Aging of Amortized Cost Basis of Loans by Aging Category and Accrual Status (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | $ 1,886,037 | $ 1,883,470
Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 1,208,856 | 1,221,521
Commercial real estate | Construction, land & land development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 196,390 | 247,146
Commercial real estate | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 1,012,466 | 974,375
Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 349,777 | 356,234
Commercial, financial & agricultural |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 242,389 | 242,756
Consumer and other |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 85,015 | 62,959
Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 1,886,037 | 1,883,470
Nonaccrual Loans | 12,215 | 9,839
Legacy Loans | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 3,790 | 6,069
Legacy Loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 44 | 370
Legacy Loans | Total Accruing Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 3,834 | 6,439
Legacy Loans | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 1,869,988 | 1,867,192
Legacy Loans | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 1,208,856 | 1,221,521
Nonaccrual Loans | 5,380 | 4,304
Legacy Loans | Commercial real estate | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 900 | 2,608
Legacy Loans | Commercial real estate | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 0 | 0
Legacy Loans | Commercial real estate | Total Accruing Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 900 | 2,608
Legacy Loans | Commercial real estate | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 1,202,576 | 1,214,609
Legacy Loans | Commercial real estate | Construction, land & land development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 196,390 | 247,146
Nonaccrual Loans | 0 | 85
Legacy Loans | Commercial real estate | Construction, land & land development | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 208 | 812
Legacy Loans | Commercial real estate | Construction, land & land development | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 0 | 0
Legacy Loans | Commercial real estate | Construction, land & land development | Total Accruing Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 208 | 812
Legacy Loans | Commercial real estate | Construction, land & land development | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 196,182 | 246,249
Legacy Loans | Commercial real estate | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 1,012,466 | 974,375
Nonaccrual Loans | 5,380 | 4,219
Legacy Loans | Commercial real estate | Other commercial real estate | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 692 | 1,796
Legacy Loans | Commercial real estate | Other commercial real estate | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 0 | 0
Legacy Loans | Commercial real estate | Other commercial real estate | Total Accruing Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 692 | 1,796
Legacy Loans | Commercial real estate | Other commercial real estate | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 1,006,394 | 968,360
Legacy Loans | Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 349,777 | 356,234
Nonaccrual Loans | 1,486 | 3,561
Legacy Loans | Residential real estate | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 2,003 | 2,503
Legacy Loans | Residential real estate | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 0 | 350
Legacy Loans | Residential real estate | Total Accruing Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 2,003 | 2,853
Legacy Loans | Residential real estate | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 346,288 | 349,820
Legacy Loans | Commercial, financial & agricultural |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 242,389 | 242,756
Nonaccrual Loans | 5,327 | 1,956
Legacy Loans | Commercial, financial & agricultural | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 660 | 775
Legacy Loans | Commercial, financial & agricultural | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 0 | 0
Legacy Loans | Commercial, financial & agricultural | Total Accruing Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 660 | 775
Legacy Loans | Commercial, financial & agricultural | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 236,402 | 240,025
Legacy Loans | Consumer and other |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 85,015 | 62,959
Nonaccrual Loans | 22 | 18
Legacy Loans | Consumer and other | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 227 | 183
Legacy Loans | Consumer and other | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 44 | 20
Legacy Loans | Consumer and other | Total Accruing Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | 271 | 203
Legacy Loans | Consumer and other | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, net of unearned income | $ 84,722 | $ 62,738

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (3) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (2) -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-14 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-80 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
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_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: |

X
- Details
Name: | us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetOriginatedMember
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: |