XML 82 R62.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | $ 12,127 | $ 6,863
Charge-offs | (913) | (1,781)
Recoveries | 996 | 487
Provision | 700 | 6,558
Ending balance | 12,910 | 12,127
Period-end amount allocated to: |  |
Individually evaluated for impairment | 256 | 1,925
Collectively evaluated for impairment | 12,534 | 10,117
Purchase credit impaired | 256 | 1,925
Loans: |  |
Loans individually evaluated for impairment | 8,759 | 27,114
Loans collectively evaluated for impairment | 1,327,229 | 1,032,142
Purchased credit impaired | 10,748 | 27,361
Loans | 1,337,977 | 1,059,503
Purchase credit impaired |  |
Period-end amount allocated to: |  |
Purchase credit impaired | 120 | 85
Loans: |  |
Purchased credit impaired | 1,989 | 247
Construction, land & land development |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 1,013 | 215
Charge-offs | 0 | (4)
Recoveries | 466 | 45
Provision | (352) | 757
Ending balance | 1,127 | 1,013
Period-end amount allocated to: |  |
Individually evaluated for impairment | 0 | 0
Collectively evaluated for impairment | 1,127 | 1,013
Purchase credit impaired | 0 | 0
Loans: |  |
Loans individually evaluated for impairment | 62 | 6,982
Loans collectively evaluated for impairment | 165,384 | 114,017
Purchased credit impaired | 62 | 7,076
Loans | 165,446 | 121,093
Construction, land & land development | Purchase credit impaired |  |
Period-end amount allocated to: |  |
Purchase credit impaired | 0 | 0
Loans: |  |
Purchased credit impaired | 0 | 94
Other commercial real estate |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 6,880 | 3,908
Charge-offs | (568) | (226)
Recoveries | 118 | 153
Provision | 1,261 | 3,045
Ending balance | 7,691 | 6,880
Period-end amount allocated to: |  |
Individually evaluated for impairment | 148 | 1,436
Collectively evaluated for impairment | 7,525 | 5,444
Purchase credit impaired | 148 | 1,436
Loans: |  |
Loans individually evaluated for impairment | 6,852 | 17,430
Loans collectively evaluated for impairment | 778,624 | 502,961
Purchased credit impaired | 8,768 | 17,430
Loans | 787,392 | 520,391
Other commercial real estate | Purchase credit impaired |  |
Period-end amount allocated to: |  |
Purchase credit impaired | 18 | 0
Loans: |  |
Purchased credit impaired | 1,916 | 0
Residential real estate |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 2,278 | 980
Charge-offs | (3) | (206)
Recoveries | 274 | 142
Provision | (744) | 1,362
Ending balance | 1,805 | 2,278
Period-end amount allocated to: |  |
Individually evaluated for impairment | 108 | 226
Collectively evaluated for impairment | 1,691 | 2,048
Purchase credit impaired | 108 | 226
Loans: |  |
Loans individually evaluated for impairment | 1,770 | 2,352
Loans collectively evaluated for impairment | 210,757 | 180,658
Purchased credit impaired | 1,770 | 2,363
Loans | 212,527 | 183,021
Residential real estate | Purchase credit impaired |  |
Period-end amount allocated to: |  |
Purchase credit impaired | 6 | 4
Loans: |  |
Purchased credit impaired | 0 | 11
Commercial, financial, & agricultural |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 1,713 | 1,657
Charge-offs | (274) | (242)
Recoveries | 91 | 43
Provision | (447) | 255
Ending balance | 1,083 | 1,713
Period-end amount allocated to: |  |
Individually evaluated for impairment | 0 | 263
Collectively evaluated for impairment | 1,083 | 1,450
Purchase credit impaired | 0 | 263
Loans: |  |
Loans individually evaluated for impairment | 75 | 350
Loans collectively evaluated for impairment | 153,973 | 212,984
Purchased credit impaired | 75 | 396
Loans | 154,048 | 213,380
Commercial, financial, & agricultural | Purchase credit impaired |  |
Period-end amount allocated to: |  |
Purchase credit impaired | 0 | 0
Loans: |  |
Purchased credit impaired | 0 | 46
Consumer & other |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 243 | 103
Charge-offs | (68) | (1,103)
Recoveries | 47 | 104
Provision | 982 | 1,139
Ending balance | 1,204 | 243
Period-end amount allocated to: |  |
Individually evaluated for impairment | 0 | 0
Collectively evaluated for impairment | 1,108 | 162
Purchase credit impaired | 0 | 0
Loans: |  |
Loans individually evaluated for impairment | 0 | 0
Loans collectively evaluated for impairment | 18,491 | 21,522
Purchased credit impaired | 73 | 96
Loans | 18,564 | 21,618
Consumer & other | Purchase credit impaired |  |
Period-end amount allocated to: |  |
Purchase credit impaired | 96 | 81
Loans: |  |
Purchased credit impaired | $ 73 | $ 96

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
- 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_AllowanceForLoanAndLeaseLossesRollForward
Namespace Prefix: | us-gaap_
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. + 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 http://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 http://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 http://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 Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + 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 http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 http://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, 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 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 http://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 http://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 http://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
- Definition Amount of credit loss expense (reversal of expense) for 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 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
Name: | us-gaap_ProvisionForLoanLossesExpensed
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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