XML 58 R48.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Note 4 - Allowance for Loan Losses - Segregated by Class of Loan (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Allowance for loan losses, beginning balance | $ 8,923 | $ 8,604
Allowance for loan losses, charge-offs | (917) | (551)
Allowance for loan losses, recoveries | 523 | 1,142
Provision for Loan Losses | 335 | 354
Allowance for loan losses, ending balance | 8,864 | 9,549
Commercial [Member] | Commercial and Agricultural Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 456 | 855
Allowance for loan losses, charge-offs | (4) | (169)
Allowance for loan losses, recoveries | 79 | 12
Provision for Loan Losses | (128) | (144)
Allowance for loan losses, ending balance | 403 | 554
Commercial [Member] | Real Estate Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 5,751 | 3,851
Allowance for loan losses, charge-offs | (852) | (248)
Allowance for loan losses, recoveries | 247 | 168
Provision for Loan Losses | 773 | 1,475
Allowance for loan losses, ending balance | 5,919 | 5,246
Agricultural [Member] | Commercial and Agricultural Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 168 | 203
Allowance for loan losses, charge-offs |  | (22)
Allowance for loan losses, recoveries | 1 | 1
Provision for Loan Losses | 20 | 10
Allowance for loan losses, ending balance | 189 | 192
Commercial Construction [Member] | Real Estate Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 323 | 691
Allowance for loan losses, charge-offs |  |
Allowance for loan losses, recoveries | 162 | 804
Provision for Loan Losses | (183) | (685)
Allowance for loan losses, ending balance | 302 | 810
Residential Construction [Member] | Real Estate Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 13 | 20
Allowance for loan losses, charge-offs |  |
Allowance for loan losses, recoveries |  |
Provision for Loan Losses | (3) |
Allowance for loan losses, ending balance | 10 | 20
Residential [Member] | Real Estate Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 1,396 | 1,990
Allowance for loan losses, charge-offs | (15) | (63)
Allowance for loan losses, recoveries | 15 | 14
Provision for Loan Losses | (160) | (136)
Allowance for loan losses, ending balance | 1,236 | 1,805
Farmland [Member] | Real Estate Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 722 | 912
Allowance for loan losses, charge-offs |  |
Allowance for loan losses, recoveries |  | 125
Provision for Loan Losses | (13) | (234)
Allowance for loan losses, ending balance | 709 | 803
Consumer [Member] | Consumer and Other Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 80 | 63
Allowance for loan losses, charge-offs | (46) | (49)
Allowance for loan losses, recoveries | 19 | 15
Provision for Loan Losses | 28 | 72
Allowance for loan losses, ending balance | 81 | 101
Other [Member] | Consumer and Other Portfolio Segment [Member] |  |
Allowance for loan losses, beginning balance | 14 | 19
Allowance for loan losses, charge-offs |  |
Allowance for loan losses, recoveries |  | 3
Provision for Loan Losses | 1 | (4)
Allowance for loan losses, ending balance | $ 15 | $ 18

X
- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544 + Details
Name: | us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_ProvisionForLoanAndLeaseLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=cban_CommercialAndAgriculturalPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=cban_RealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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