XML 47 R37.htm IDEA: XBRL DOCUMENT
v3.21.2

Loans - Segregated by Class of Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | $ 1,022,618 | $ 1,059,503
Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 965,864 | 974,573
Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 56,754 | 84,930
Construction, land and land development |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 118,940 | 121,093
Other commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 545,883 | 520,391
Commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 664,823 | 641,484
Commercial real estate | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 627,068 | 587,022
Commercial real estate | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 37,755 | 54,462
Commercial real estate | Construction, land and land development |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 118,940 | 121,093
Commercial real estate | Construction, land and land development | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 112,843 | 109,577
Commercial real estate | Construction, land and land development | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 6,097 | 11,516
Commercial real estate | Other commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 545,883 | 520,391
Commercial real estate | Other commercial real estate | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 514,225 | 477,445
Commercial real estate | Other commercial real estate | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 31,658 | 42,946
Residential real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 170,173 | 183,021
Residential real estate | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 159,527 | 167,714
Residential real estate | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 10,646 | 15,307
Commercial, financial & agricultural |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 167,717 | 213,380
Commercial, financial & agricultural | Paycheck Protection Program, CARES Act |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 58,800 | 101,100
Commercial, financial & agricultural | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 161,295 | 200,800
Commercial, financial & agricultural | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 6,422 | 12,580
Consumer and other |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 19,905 | 21,618
Consumer and other | Legacy Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 17,974 | 19,037
Consumer and other | Purchased Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | $ 1,931 | $ 2,581

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 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_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_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_UnusualOrInfrequentItemAxis=cban_PaycheckProtectionProgramCARESActMember
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: |