XML 29 R46.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Subordinated Debentures (Trust Preferred Securities) (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2013 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 | $ 810
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
Total Interest rate (in hundredths) | 2.95325%
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) | 0.27325%
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
Total Interest rate (in hundredths) | 1.774%
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) | 0.274%
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
Total Interest rate (in hundredths) | 1.924%
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) | 0.274%
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
Total Interest rate (in hundredths) | 1.6756%
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) | 0.2756%
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 The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. + 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=6584090&loc=d3e28878-108400 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16, 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DebtInstrumentMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. + 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