XML 52 R44.htm IDEA: XBRL DOCUMENT
v3.23.2

Loans - Age Analysis of Past Due Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 1,838,842 | $ 1,737,106
Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,838,842 | 1,737,106
Nonaccrual Loans | 11,085 | 5,706
30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,615 | 1,793
90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,615 | 1,793
Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,825,142 | 1,729,607
Construction, land & land development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  | 229,435
Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  | 975,447
Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,228,932 | 1,204,882
Commercial real estate | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,228,932 | 1,204,882
Nonaccrual Loans | 2,326 | 1,658
Commercial real estate | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 551 | 395
Commercial real estate | 90 Days or More Past Due | Legacy 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 | 551 | 395
Commercial real estate | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,226,055 | 1,202,829
Commercial real estate | Construction, land & land development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 249,423 | 229,435
Commercial real estate | Construction, land & land development | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 249,423 | 229,435
Nonaccrual Loans | 93 | 149
Commercial real estate | Construction, land & land development | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 189 | 0
Commercial real estate | Construction, land & land development | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate | Construction, land & land development | Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 189 | 0
Commercial real estate | Construction, land & land development | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 249,141 | 229,286
Commercial real estate | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 979,509 | 975,447
Commercial real estate | Other commercial real estate | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 979,509 | 975,447
Nonaccrual Loans | 2,233 | 1,509
Commercial real estate | Other commercial real estate | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 362 | 395
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 | Total Accruing Loans Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 362 | 395
Commercial real estate | Other commercial real estate | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 976,914 | 973,543
Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 325,407 | 290,054
Residential real estate | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 325,407 | 290,054
Nonaccrual Loans | 4,275 | 2,686
Residential real estate | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,643 | 882
Residential real estate | 90 Days or More Past Due | Legacy 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 | 1,643 | 882
Residential real estate | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 319,489 | 286,486
Commercial, financial & agricultural |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 243,458 | 223,923
Commercial, financial & agricultural | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 243,458 | 223,923
Nonaccrual Loans | 4,443 | 1,341
Commercial, financial & agricultural | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 301 | 476
Commercial, financial & agricultural | 90 Days or More Past Due | Legacy 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 | 301 | 476
Commercial, financial & agricultural | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 238,714 | 222,106
Consumer and other |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 41,045 | 18,247
Consumer and other | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 41,045 | 18,247
Nonaccrual Loans | 41 | 21
Consumer and other | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 120 | 40
Consumer and other | 90 Days or More Past Due | Legacy 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 | 120 | 40
Consumer and other | Current Loans | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 40,884 | $ 18,186

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://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 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://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 + 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_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: |

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: |