XML 53 R42.htm IDEA: XBRL DOCUMENT
v3.22.2

Allowance for Loan Losses - Segregated by Class of Loan (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | $ 12,919 | $ 12,693 | $ 12,910 | $ 12,127 |
Charge-offs | 167 | 68 | 275 | 94 |
Recoveries | 111 | 246 | 178 | 338 |
Provision | 1,100 | 0 | 1,150 | 500 |
Ending balance | 13,963 | 12,871 | 13,963 | 12,871 |
Period end amount allocated to |  |  |  |  |
Individually evaluated for impairment | 536 |  | 536 |  | $ 256
Collectively evaluated for impairment | 13,427 |  | 13,427 |  | 12,534
Purchase credit impaired | 536 |  | 536 |  | 256
Ending Balance | 13,963 | 12,871 | 13,963 | 12,871 | 12,910
Loans |  |  |  |  |
Individually evaluated for impairment | 10,027 |  | 10,027 |  | 8,759
Collectively evaluated for impairment | 1,441,231 |  | 1,441,231 |  | 1,327,229
Purchase credit impaired | 11,570 |  | 11,570 |  | 10,748
Loans | 1,452,805 |  | 1,452,805 |  | 1,337,977
Purchase credit impaired |  |  |  |  |
Period end amount allocated to |  |  |  |  |
Purchase credit impaired | 0 |  | 0 |  | 120
Loans |  |  |  |  |
Purchase credit impaired | 1,547 |  | 1,547 |  | 1,989
Residential real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 1,811 | 2,411 | 1,805 | 2,278 |
Charge-offs | 30 | 0 | 48 | 0 |
Recoveries | 18 | 44 | 22 | 110 |
Provision | (311) | (182) | (291) | (115) |
Ending balance | 1,488 | 2,273 | 1,488 | 2,273 |
Period end amount allocated to |  |  |  |  |
Individually evaluated for impairment | 57 |  | 57 |  | 108
Collectively evaluated for impairment | 1,431 |  | 1,431 |  | 1,691
Purchase credit impaired | 57 |  | 57 |  | 108
Ending Balance | 1,488 | 2,273 | 1,488 | 2,273 | 1,805
Loans |  |  |  |  |
Individually evaluated for impairment | 1,115 |  | 1,115 |  | 1,770
Collectively evaluated for impairment | 215,025 |  | 215,025 |  | 210,757
Purchase credit impaired | 1,165 |  | 1,165 |  | 1,770
Loans | 216,189 |  | 216,189 |  | 212,527
Residential real estate | Purchase credit impaired |  |  |  |  |
Period end amount allocated to |  |  |  |  |
Purchase credit impaired | 0 |  | 0 |  | 6
Loans |  |  |  |  |
Purchase credit impaired | 49 |  | 49 |  | 0
Commercial, financial & agricultural |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 2,087 | 1,666 | 1,083 | 1,713 |
Charge-offs | 132 | 0 | 148 | 15 |
Recoveries | 12 | 15 | 56 | 18 |
Provision | (289) | 92 | 687 | 57 |
Ending balance | 1,678 | 1,773 | 1,678 | 1,773 |
Period end amount allocated to |  |  |  |  |
Individually evaluated for impairment | 350 |  | 350 |  | 0
Collectively evaluated for impairment | 1,328 |  | 1,328 |  | 1,083
Purchase credit impaired | 350 |  | 350 |  | 0
Ending Balance | 1,678 | 1,773 | 1,678 | 1,773 | 1,083
Loans |  |  |  |  |
Individually evaluated for impairment | 1,240 |  | 1,240 |  | 75
Collectively evaluated for impairment | 183,558 |  | 183,558 |  | 153,973
Purchase credit impaired | 1,236 |  | 1,236 |  | 75
Loans | 184,798 |  | 184,798 |  | 154,048
Commercial, financial & agricultural | Purchase credit impaired |  |  |  |  |
Period end amount allocated to |  |  |  |  |
Purchase credit impaired | 0 |  | 0 |  | 0
Loans |  |  |  |  |
Purchase credit impaired | 0 |  | 0 |  | 0
Consumer and other |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 327 | 435 | 1,204 | 243 |
Charge-offs | 5 | 32 | 21 | 43 |
Recoveries | 9 | 22 | 15 | 30 |
Provision | 1,386 | (2) | 519 | 193 |
Ending balance | 1,717 | 423 | 1,717 | 423 |
Period end amount allocated to |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  | 0
Collectively evaluated for impairment | 1,717 |  | 1,717 |  | 1,108
Purchase credit impaired | 0 |  | 0 |  | 0
Ending Balance | 1,717 | 423 | 1,717 | 423 | 1,204
Loans |  |  |  |  |
Individually evaluated for impairment | 2 |  | 2 |  | 0
Collectively evaluated for impairment | 18,321 |  | 18,321 |  | 18,491
Purchase credit impaired | 70 |  | 70 |  | 73
Loans | 18,392 |  | 18,392 |  | 18,564
Consumer and other | Purchase credit impaired |  |  |  |  |
Period end amount allocated to |  |  |  |  |
Purchase credit impaired | 0 |  | 0 |  | 96
Loans |  |  |  |  |
Purchase credit impaired | 69 |  | 69 |  | 73
Construction, land and land development |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 1,339 | 1,053 | 1,127 | 1,013 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 5 | 70 | 11 | 85 |
Provision | (292) | 2 | (86) | 27 |
Ending balance | 1,052 | 1,125 | 1,052 | 1,125 |
Period end amount allocated to |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  | 0
Collectively evaluated for impairment | 1,052 |  | 1,052 |  | 1,127
Purchase credit impaired | 0 |  | 0 |  | 0
Ending Balance | 1,052 | 1,125 | 1,052 | 1,125 | 1,127
Loans |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  | 62
Collectively evaluated for impairment | 187,045 |  | 187,045 |  | 165,384
Purchase credit impaired | 0 |  | 0 |  | 62
Loans | 187,045 |  | 187,045 |  | 165,446
Construction, land and land development | Purchase credit impaired |  |  |  |  |
Period end amount allocated to |  |  |  |  |
Purchase credit impaired | 0 |  | 0 |  | 0
Loans |  |  |  |  |
Purchase credit impaired | 0 |  | 0 |  | 0
Other commercial real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 7,355 | 7,128 | 7,691 | 6,880 |
Charge-offs | 0 | 36 | 58 | 36 |
Recoveries | 67 | 95 | 74 | 95 |
Provision | 606 | 90 | 321 | 338 |
Ending balance | 8,028 | 7,277 | 8,028 | 7,277 |
Period end amount allocated to |  |  |  |  |
Individually evaluated for impairment | 129 |  | 129 |  | 148
Collectively evaluated for impairment | 7,899 |  | 7,899 |  | 7,525
Purchase credit impaired | 129 |  | 129 |  | 148
Ending Balance | 8,028 | $ 7,277 | 8,028 | $ 7,277 | 7,691
Loans |  |  |  |  |
Individually evaluated for impairment | 7,670 |  | 7,670 |  | 6,852
Collectively evaluated for impairment | 837,282 |  | 837,282 |  | 778,624
Purchase credit impaired | 9,099 |  | 9,099 |  | 8,768
Loans | 846,381 |  | 846,381 |  | 787,392
Other commercial real estate | Purchase credit impaired |  |  |  |  |
Period end amount allocated to |  |  |  |  |
Purchase credit impaired | 0 |  | 0 |  | 18
Loans |  |  |  |  |
Purchase credit impaired | $ 1,429 |  | $ 1,429 |  | $ 1,916

X
- Definition Loans And Leases, Additional Information + References No definition available. + Details
Name: | cban_LoansAndLeasesAdditionalInformationAbstract
Namespace Prefix: | cban_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: 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 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. 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 13 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. 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 13 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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 Amount, excluding accrued interest, of credit loss expense (reversal of expense) on 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 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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 -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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: |