XML 49 R38.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Loans - Loan Portfolio by Credit Quality Indicators (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | $ 1,586,613 | $ 1,337,977
Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 1,121,461 | 952,838
Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 241,251 | 212,527
Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 206,585 | 154,048
Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 17,316 | 18,564
Construction, land and land development |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 235,654 | 165,446
Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 235,654 | 165,446
Other commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 885,807 | 787,392
Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 885,807 | 787,392
Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 1,372,257 | 1,004,204
Legacy Loans | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 966,262 | 715,692
Legacy Loans | Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 198,377 | 159,469
Legacy Loans | Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 191,362 | 113,040
Legacy Loans | Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 16,256 | 16,003
Legacy Loans | Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 215,731 | 119,953
Legacy Loans | Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 750,531 | 595,739
Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 214,356 | 333,773
Purchased Loans | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 155,199 | 237,146
Purchased Loans | Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 42,874 | 53,058
Purchased Loans | Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 15,223 | 41,008
Purchased Loans | Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 1,060 | 2,561
Purchased Loans | Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 19,923 | 45,493
Purchased Loans | Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 135,276 | 191,653
Pass | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 1,335,505 | 953,833
Pass | Legacy Loans | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 941,542 | 679,272
Pass | Legacy Loans | Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 188,721 | 148,507
Pass | Legacy Loans | Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 189,093 | 110,267
Pass | Legacy Loans | Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 16,149 | 15,787
Pass | Legacy Loans | Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 215,087 | 117,044
Pass | Legacy Loans | Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 726,455 | 562,228
Pass | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 207,176 | 325,481
Pass | Purchased Loans | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 151,034 | 232,337
Pass | Purchased Loans | Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 40,444 | 49,875
Pass | Purchased Loans | Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 14,638 | 40,711
Pass | Purchased Loans | Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 1,060 | 2,558
Pass | Purchased Loans | Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 19,923 | 45,432
Pass | Purchased Loans | Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 131,111 | 186,905
Special Mention | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 21,791 | 35,651
Special Mention | Legacy Loans | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 15,112 | 28,352
Special Mention | Legacy Loans | Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 5,819 | 5,733
Special Mention | Legacy Loans | Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 802 | 1,488
Special Mention | Legacy Loans | Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 58 | 78
Special Mention | Legacy Loans | Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 240 | 2,634
Special Mention | Legacy Loans | Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 14,872 | 25,718
Special Mention | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 3,831 | 4,084
Special Mention | Purchased Loans | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 3,117 | 3,518
Special Mention | Purchased Loans | Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 632 | 563
Special Mention | Purchased Loans | Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 82 | 0
Special Mention | Purchased Loans | Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 0 | 3
Special Mention | Purchased Loans | Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 0 | 0
Special Mention | Purchased Loans | Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 3,117 | 3,518
Substandard | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 14,961 | 14,720
Substandard | Legacy Loans | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 9,608 | 8,068
Substandard | Legacy Loans | Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 3,837 | 5,229
Substandard | Legacy Loans | Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 1,467 | 1,285
Substandard | Legacy Loans | Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 49 | 138
Substandard | Legacy Loans | Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 404 | 275
Substandard | Legacy Loans | Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 9,204 | 7,793
Substandard | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 3,349 | 4,208
Substandard | Purchased Loans | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 1,048 | 1,291
Substandard | Purchased Loans | Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 1,798 | 2,620
Substandard | Purchased Loans | Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 503 | 297
Substandard | Purchased Loans | Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 0 | 0
Substandard | Purchased Loans | Construction, land and land development | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 0 | 61
Substandard | Purchased Loans | Other commercial real estate | Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | $ 1,048 | $ 1,230

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/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://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 https://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 https://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 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_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: |

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_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_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |