XML 54 R46.htm IDEA: XBRL DOCUMENT
v3.23.3

Loans - Impaired Loan Data (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($)
Unpaid Contractual Principal Balance |
With No Related Allowance Recorded | $ 3,856
With An Allowance Recorded | 474
Loans Including Purchased Credit Impaired Loans | 5,128
Recorded Investment |
With No Related Allowance Recorded | 3,856
With An Allowance Recorded | 474
Loans Including Purchased Credit Impaired Loans | 5,128
Related Allowance |
With An Allowance Recorded | 44
Total Impaired Loans | 77
Average Recorded Investment |
With No Related Allowance Recorded | 6,198
With An Allowance Recorded | 1,637
Loans Including Purchased Credit Impaired Loans | 8,673
Purchased Credit Impaired Loans |
Unpaid Contractual Principal Balance |
Loans Including Purchased Credit Impaired Loans | 798
Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 798
Related Allowance |
With An Allowance Recorded | 33
Purchased Credit Impaired Loans | 33
Average Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 838
Residential real estate |
Unpaid Contractual Principal Balance |
With No Related Allowance Recorded | 62
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 62
Recorded Investment |
With No Related Allowance Recorded | 62
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 62
Related Allowance |
With An Allowance Recorded | 0
Total Impaired Loans | 0
Average Recorded Investment |
With No Related Allowance Recorded | 570
With An Allowance Recorded | 588
Loans Including Purchased Credit Impaired Loans | 1,171
Residential real estate | Purchased Credit Impaired Loans |
Unpaid Contractual Principal Balance |
Loans Including Purchased Credit Impaired Loans | 0
Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 0
Related Allowance |
With An Allowance Recorded | 0
Purchased Credit Impaired Loans | 0
Average Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 13
Commercial, financial & agricultural |
Unpaid Contractual Principal Balance |
With No Related Allowance Recorded | 0
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 0
Recorded Investment |
With No Related Allowance Recorded | 0
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 0
Related Allowance |
With An Allowance Recorded | 0
Total Impaired Loans | 0
Average Recorded Investment |
With No Related Allowance Recorded | 306
With An Allowance Recorded | 369
Loans Including Purchased Credit Impaired Loans | 675
Commercial, financial & agricultural | Purchased Credit Impaired Loans |
Unpaid Contractual Principal Balance |
Loans Including Purchased Credit Impaired Loans | 0
Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 0
Related Allowance |
With An Allowance Recorded | 0
Purchased Credit Impaired Loans | 0
Average Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 0
Consumer and other |
Unpaid Contractual Principal Balance |
With No Related Allowance Recorded | 0
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 0
Recorded Investment |
With No Related Allowance Recorded | 0
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 0
Related Allowance |
With An Allowance Recorded | 0
Total Impaired Loans | 0
Average Recorded Investment |
With No Related Allowance Recorded | 1
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 66
Consumer and other | Purchased Credit Impaired Loans |
Unpaid Contractual Principal Balance |
Loans Including Purchased Credit Impaired Loans | 0
Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 0
Related Allowance |
With An Allowance Recorded | 0
Purchased Credit Impaired Loans | 0
Average Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 65
Construction, land & land development |
Unpaid Contractual Principal Balance |
With No Related Allowance Recorded | 40
With An Allowance Recorded | 474
Loans Including Purchased Credit Impaired Loans | 514
Recorded Investment |
With No Related Allowance Recorded | 40
With An Allowance Recorded | 474
Loans Including Purchased Credit Impaired Loans | 514
Related Allowance |
With An Allowance Recorded | 44
Total Impaired Loans | 44
Average Recorded Investment |
With No Related Allowance Recorded | 10
With An Allowance Recorded | 177
Loans Including Purchased Credit Impaired Loans | 187
Construction, land & land development | Purchased Credit Impaired Loans |
Unpaid Contractual Principal Balance |
Loans Including Purchased Credit Impaired Loans | 0
Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 0
Related Allowance |
With An Allowance Recorded | 0
Purchased Credit Impaired Loans | 0
Average Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 0
Other commercial real estate |
Unpaid Contractual Principal Balance |
With No Related Allowance Recorded | 3,754
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 4,552
Recorded Investment |
With No Related Allowance Recorded | 3,754
With An Allowance Recorded | 0
Loans Including Purchased Credit Impaired Loans | 4,552
Related Allowance |
With An Allowance Recorded | 0
Total Impaired Loans | 33
Average Recorded Investment |
With No Related Allowance Recorded | 5,311
With An Allowance Recorded | 503
Loans Including Purchased Credit Impaired Loans | 6,574
Other commercial real estate | Purchased Credit Impaired Loans |
Unpaid Contractual Principal Balance |
Loans Including Purchased Credit Impaired Loans | 798
Recorded Investment |
Loans Including Purchased Credit Impaired Loans | 798
Related Allowance |
With An Allowance Recorded | 33
Purchased Credit Impaired Loans | 33
Average Recorded Investment |
Loans Including Purchased Credit Impaired Loans | $ 760

X
- Definition Impaired Financing Receivable, Purchased Credit Impaired Loans, Related Allowance + References No definition available. + Details
Name: | cban_ImpairedFinancingReceivablePurchasedCreditImpairedLoansRelatedAllowance
Namespace Prefix: | cban_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Impaired Financing Receivable, Related Allowance + References No definition available. + Details
Name: | cban_ImpairedFinancingReceivableRelatedAllowanceAbstract
Namespace Prefix: | cban_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Impaired Financing Receivable, Related Allowance Including Purchased Credit Impaired Loans + References No definition available. + Details
Name: | cban_ImpairedFinancingReceivableRelatedAllowanceIncludingPurchasedCreditImpairedLoans
Namespace Prefix: | cban_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-17 + Details
Name: | us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ImpairedFinancingReceivableAverageRecordedInvestmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-14A + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
Name: | us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalanceAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-17 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-14A + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-17 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-14A + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember
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: |