XML 50 R40.htm IDEA: XBRL DOCUMENT
v3.24.3

Loans - Schedule of Composition of Loans Segregated by Class of Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | $ 1,886,037 | $ 1,883,470
Loans Insured or Guaranteed by US Government Authorities |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 98,409 | 86,765
Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 1,208,856 | 1,221,521
Commercial real estate | Loans Insured or Guaranteed by US Government Authorities |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 56,672 | 47,879
Commercial real estate | Construction, land & land development |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 196,390 | 247,146
Commercial real estate | Construction, land & land development | Loans Insured or Guaranteed by US Government Authorities |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 2,489 | 7,027
Commercial real estate | Other commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 1,012,466 | 974,375
Commercial real estate | Other commercial real estate | Loans Insured or Guaranteed by US Government Authorities |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 54,183 | 40,852
Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 349,777 | 356,234
Residential real estate | Loans Insured or Guaranteed by US Government Authorities |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 10,125 | 12,170
Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 242,389 | 242,756
Commercial, financial & agricultural | Loans Insured or Guaranteed by US Government Authorities |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 31,612 | 26,716
Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | 85,015 | 62,959
Consumer and other | Loans Insured or Guaranteed by US Government Authorities |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans | $ 0 | $ 0

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 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_LoansAndLeasesReceivableDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember
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_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: |