XML 93 R77.htm IDEA: XBRL DOCUMENT
v3.19.1

Note 6 - Allowance for Loan Losses - Segregated by Impairment Methodology (Details) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | --- | ---
Ending allowance balance, individually evaluated for impairment | $ 1,417,731 | $ 1,826,684 | $ 3,434,772 |
Ending allowance balance, collectively evaluated for impairment | 5,859,075 | 5,680,824 | 5,488,521 |
Ending allowance balance | 7,276,806 | 7,507,508 | 8,923,293 | $ 8,603,905
Ending loan balance, individually evaluated for impairment | 20,216,023 | 21,661,519 | 26,457,339 |
Ending loan balance, collectively evaluated for impairment | 761,811,345 | 743,622,336 | 727,826,224 |
Loans | 782,027,368 | 765,283,855 | 754,283,563 |
Commercial [Member] | Commercial and Agricultural Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 6,264 |  |  |
Ending allowance balance, collectively evaluated for impairment | 363,300 | 446,675 | 456,197 |
Ending allowance balance | 369,564 | 446,675 | 456,197 | 855,364
Ending loan balance, individually evaluated for impairment | 83,309 | 77,599 | 6,671 |
Ending loan balance, collectively evaluated for impairment | 57,327,164 | 48,044,664 | 47,018,207 |
Loans | 57,410,473 | 48,122,263 | 47,024,878 |
Commercial [Member] | Real Estate Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 1,275,837 | 1,712,557 | 3,021,943 |
Ending allowance balance, collectively evaluated for impairment | 3,273,273 | 2,161,402 | 2,729,055 |
Ending allowance balance | 4,549,110 | 3,873,959 | 5,750,998 | 3,850,527
Ending loan balance, individually evaluated for impairment | 15,413,112 | 18,010,035 | 22,422,451 |
Ending loan balance, collectively evaluated for impairment | 358,120,450 | 333,161,633 | 326,667,580 |
Loans | 373,533,562 | 351,171,668 | 349,090,031 |
Agricultural [Member] | Commercial and Agricultural Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 0 |  |  |
Ending allowance balance, collectively evaluated for impairment | 248,250 | 185,904 | 167,692 |
Ending allowance balance | 248,250 | 185,904 | 167,692 | 203,091
Ending loan balance, individually evaluated for impairment | 27,031 | 5,121 |  |
Ending loan balance, collectively evaluated for impairment | 16,771,712 | 16,437,460 | 17,079,579 |
Loans | 16,798,743 | 16,442,581 | 17,079,579 |
Commercial Construction [Member] | Real Estate Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 38,930 | 65,635 | 21,135 |
Ending allowance balance, collectively evaluated for impairment | 75,944 | 1,150,380 | 301,590 |
Ending allowance balance | 114,874 | 1,216,015 | 322,725 | 690,766
Ending loan balance, individually evaluated for impairment | 467,384 | 493,067 | 72,296 |
Ending loan balance, collectively evaluated for impairment | 47,381,370 | 44,720,893 | 30,286,066 |
Loans | 47,848,754 | 45,213,960 | 30,358,362 |
Residential Construction [Member] | Real Estate Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 0 |  |  |
Ending allowance balance, collectively evaluated for impairment | 16,530 |  | 13,491 |
Ending allowance balance | 16,530 |  | 13,491 | 19,890
Ending loan balance, individually evaluated for impairment | 0 |  |  |
Ending loan balance, collectively evaluated for impairment | 12,499,744 | 8,583,446 | 11,830,447 |
Loans | 12,499,744 | 8,583,446 | 11,830,447 |
Residential [Member] | Real Estate Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 60,716 | 27,123 | 362,522 |
Ending allowance balance, collectively evaluated for impairment | 1,120,336 | 940,978 | 1,033,577 |
Ending allowance balance | 1,181,052 | 968,101 | 1,396,099 | 1,990,355
Ending loan balance, individually evaluated for impairment | 2,067,906 | 2,040,125 | 2,911,874 |
Ending loan balance, collectively evaluated for impairment | 185,646,466 | 192,008,820 | 192,668,093 |
Loans | 187,714,372 | 194,048,945 | 195,579,967 |
Farmland [Member] | Real Estate Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 35,984 | 21,369 | 29,172 |
Ending allowance balance, collectively evaluated for impairment | 665,565 | 758,162 | 693,159 |
Ending allowance balance | 701,549 | 779,531 | 722,331 | 911,692
Ending loan balance, individually evaluated for impairment | 2,157,281 | 1,035,572 | 1,044,047 |
Ending loan balance, collectively evaluated for impairment | 60,551,717 | 66,732,083 | 65,833,150 |
Loans | 62,708,998 | 67,767,655 | 66,877,197 |
Consumer [Member] | Consumer and Other Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 0 |  |  |
Ending allowance balance, collectively evaluated for impairment | 86,113 | 33,993 | 80,265 |
Ending allowance balance | 86,113 | 33,993 | 80,265 | 63,377
Ending loan balance, individually evaluated for impairment | 0 |  |  |
Ending loan balance, collectively evaluated for impairment | 18,485,199 | 18,956,028 | 19,695,241 |
Loans | 18,485,199 | 18,956,028 | 19,695,241 |
Other [Member] | Consumer and Other Portfolio Segment [Member] |  |  |  |
Ending allowance balance, individually evaluated for impairment | 0 |  |  |
Ending allowance balance, collectively evaluated for impairment | 9,764 | 3,330 | 13,495 |
Ending allowance balance | 9,764 | 3,330 | 13,495 | $ 18,843
Ending loan balance, individually evaluated for impairment | 0 |  |  |
Ending loan balance, collectively evaluated for impairment | 5,027,523 | 14,977,309 | 16,747,861 |
Loans | $ 5,027,523 | $ 14,977,309 | $ 16,747,861 |

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=84173941&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=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
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=84173941&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 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://fasb.org/us-gaap/role/ref/legacyRef -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 2: 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=84173941&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -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 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -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 5: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
Name: | us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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=82891408&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_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: |