XML 15 R46.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Subordinated Debentures (Trust Preferred Securities) (Details) (USD $) | 9 Months Ended
--- | ---
Sep. 30, 2014 Period
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
Number of deferred consecutive quarterly periods without default or penalty, maximum | 20
Accrued but unpaid interest expense | $ 1,500,000
Trust Preferred Securities [Member] | Colony Bankcorp Statutory Trust III [Member] |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
Date | Jun. 17, 2004
Amount | 4,500,000
Total Interest rate (in hundredths) | 2.9146%
Maturity | Jun. 14, 2034
5 Years Call Option | Jun. 17, 2009
Trust Preferred Securities [Member] | Colony Bankcorp Statutory Trust III [Member] | LIBOR [Member] |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
3 month Libor Rate (in hundredths) | 0.2346%
Added Points (in hundredths) | 2.68%
Trust Preferred Securities [Member] | Colony Bankcorp Capital Trust I [Member] |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
Date | Apr. 13, 2006
Amount | 5,000,000
Total Interest rate (in hundredths) | 1.7331%
Maturity | Apr. 13, 2036
5 Years Call Option | Apr. 13, 2011
Trust Preferred Securities [Member] | Colony Bankcorp Capital Trust I [Member] | LIBOR [Member] |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
3 month Libor Rate (in hundredths) | 0.2331%
Added Points (in hundredths) | 1.50%
Trust Preferred Securities [Member] | Colony Bankcorp Capital Trust II [Member] |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
Date | Mar. 12, 2007
Amount | 9,000,000
Total Interest rate (in hundredths) | 1.8831%
Maturity | Mar. 12, 2037
5 Years Call Option | Mar. 12, 2012
Trust Preferred Securities [Member] | Colony Bankcorp Capital Trust II [Member] | LIBOR [Member] |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
3 month Libor Rate (in hundredths) | 0.2331%
Added Points (in hundredths) | 1.65%
Trust Preferred Securities [Member] | Colony Bankcorp Capital Trust III [Member] |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
Date | Sep. 14, 2007
Amount | $ 5,000,000
Total Interest rate (in hundredths) | 1.6361%
Maturity | Sep. 14, 2037
5 Years Call Option | Sep. 14, 2012
Trust Preferred Securities [Member] | Colony Bankcorp Capital Trust III [Member] | LIBOR [Member] |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |
3 month Libor Rate (in hundredths) | 0.2361%
Added Points (in hundredths) | 1.40%

X
- Definition Maximum number of deferred consecutive quarterly periods without default or penalty for deferment of interest payment. + References No definition available. + Details
Name: | cban_NumberOfDeferredConsecutiveQuarterlyPeriodsWithoutDefaultOrPenaltyMaximum
Namespace Prefix: | cban_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum redemption date. + References No definition available. + Details
Name: | cban_RedemptionDateMinimum
Namespace Prefix: | cban_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The rate which is used as a benchmark to determine the variable rates. + References No definition available. + Details
Name: | cban_ReferenceRate
Namespace Prefix: | cban_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Date the debt instrument was issued, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentIssuanceDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of interest payable on debt, including, but not limited to, trade payables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 + Details
Name: | us-gaap_InterestPayableCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtPercentageBearingVariableInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_SharesSubjectToMandatoryRedemptionBySettlementTermsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration