XML 56 R45.htm IDEA: XBRL DOCUMENT
v3.20.2

Loans - Age Analysis of Past Due Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 1,101,606 | $ 968,814
Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 1,928 | 1,914
Nonaccrual Loans | 7,671 | 9,179
Current Loans | 995,573 | 836,007
Loans | 1,005,172 | 847,100
Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 295 | 701
Nonaccrual Loans | 2,255 | 0
Current Loans | 93,884 | 121,013
Loans | 96,434 | 121,714
30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 1,928 | 1,914
30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 295 | 701
90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Construction, land and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 128,291 | 96,097
Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 509,992 | 540,239
Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 185,118 | 194,796
Residential real estate | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 1,390 | 1,296
Nonaccrual Loans | 3,532 | 3,643
Current Loans | 163,217 | 166,402
Loans | 168,139 | 171,341
Residential real estate | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 57
Nonaccrual Loans | 78 | 0
Current Loans | 16,901 | 23,398
Loans | 16,979 | 23,455
Residential real estate | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 1,390 | 1,296
Residential real estate | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 57
Residential real estate | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Residential real estate | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Commercial, financial, & agricultural |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 254,915 | 114,360
Commercial, financial, & agricultural | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 193 | 212
Nonaccrual Loans | 1,451 | 1,628
Current Loans | 240,707 | 89,695
Loans | 242,351 | 91,535
Commercial, financial, & agricultural | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 159 | 553
Nonaccrual Loans | 38 | 0
Current Loans | 12,367 | 22,272
Loans | 12,564 | 22,825
Commercial, financial, & agricultural | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 193 | 212
Commercial, financial, & agricultural | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 159 | 553
Commercial, financial, & agricultural | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Commercial, financial, & agricultural | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Consumer and other |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 23,290 | 23,322
Consumer and other | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 49 | 21
Nonaccrual Loans | 102 | 138
Current Loans | 20,269 | 19,086
Loans | 20,420 | 19,245
Consumer and other | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 8
Nonaccrual Loans | 84 | 0
Current Loans | 2,786 | 4,069
Loans | 2,870 | 4,077
Consumer and other | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 49 | 21
Consumer and other | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 8
Consumer and other | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Consumer and other | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Commercial Real Estate Portfolio Segment |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 638,283 | 636,336
Commercial Real Estate Portfolio Segment | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 296 | 385
Nonaccrual Loans | 2,586 | 3,770
Current Loans | 571,380 | 560,824
Loans | 574,262 | 564,979
Commercial Real Estate Portfolio Segment | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 136 | 83
Nonaccrual Loans | 2,055 | 0
Current Loans | 61,830 | 71,274
Loans | 64,021 | 71,357
Commercial Real Estate Portfolio Segment | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 296 | 385
Commercial Real Estate Portfolio Segment | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 136 | 83
Commercial Real Estate Portfolio Segment | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Commercial Real Estate Portfolio Segment | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Commercial Real Estate Portfolio Segment | Construction, land and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 128,291 | 96,097
Commercial Real Estate Portfolio Segment | Construction, land and land development | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 90 | 50
Nonaccrual Loans | 0 | 32
Current Loans | 110,072 | 82,954
Loans | 110,162 | 83,036
Commercial Real Estate Portfolio Segment | Construction, land and land development | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 136 | 0
Nonaccrual Loans | 79 | 0
Current Loans | 17,914 | 13,061
Loans | 18,129 | 13,061
Commercial Real Estate Portfolio Segment | Construction, land and land development | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 90 | 50
Commercial Real Estate Portfolio Segment | Construction, land and land development | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 136 | 0
Commercial Real Estate Portfolio Segment | Construction, land and land development | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Commercial Real Estate Portfolio Segment | Construction, land and land development | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Commercial Real Estate Portfolio Segment | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 509,992 | 540,239
Commercial Real Estate Portfolio Segment | Other commercial real estate | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 206 | 335
Nonaccrual Loans | 2,586 | 3,738
Current Loans | 461,308 | 477,870
Loans | 464,100 | 481,943
Commercial Real Estate Portfolio Segment | Other commercial real estate | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 83
Nonaccrual Loans | 1,976 | 0
Current Loans | 43,916 | 58,213
Loans | 45,892 | 58,296
Commercial Real Estate Portfolio Segment | Other commercial real estate | 30-89 Days Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 206 | 335
Commercial Real Estate Portfolio Segment | Other commercial real estate | 30-89 Days Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 83
Commercial Real Estate Portfolio Segment | Other commercial real estate | 90 Days or More Past Due | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | 0 | 0
Commercial Real Estate Portfolio Segment | Other commercial real estate | 90 Days or More Past Due | Purchased Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Accruing Loans Past Due | $ 0 | $ 0

X
- Definition Amount of financing receivable not past due. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable past due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
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_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_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_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_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cban_CommercialFinancialAndAgriculturalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cban_ConsumerAndOtherMember
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: |