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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Interest Income |  |  |
Loans, Including Fees | $ 39,735,615 us-gaap_InterestAndFeeIncomeLoansAndLeases | $ 41,350,195 us-gaap_InterestAndFeeIncomeLoansAndLeases | $ 41,963,113 us-gaap_InterestAndFeeIncomeLoansAndLeases
Federal Funds Sold | 32,100 us-gaap_InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell | 39,199 us-gaap_InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell | 99,273 us-gaap_InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell
Deposits with Other Banks | 41,639 us-gaap_InterestIncomeDepositsWithFinancialInstitutions | 26,704 us-gaap_InterestIncomeDepositsWithFinancialInstitutions | 42,903 us-gaap_InterestIncomeDepositsWithFinancialInstitutions
Investment Securities |  |  |
U. S. Government Agencies | 4,737,878 us-gaap_InterestIncomeSecuritiesUSTreasuryAndOtherUSGovernment | 3,516,978 us-gaap_InterestIncomeSecuritiesUSTreasuryAndOtherUSGovernment | 4,824,423 us-gaap_InterestIncomeSecuritiesUSTreasuryAndOtherUSGovernment
State, County and Municipal | 99,736 us-gaap_InterestIncomeSecuritiesStateAndMunicipal | 123,972 us-gaap_InterestIncomeSecuritiesStateAndMunicipal | 206,483 us-gaap_InterestIncomeSecuritiesStateAndMunicipal
Corporate Obligations | 0 us-gaap_InterestIncomeSecuritiesMortgageBacked | 47,275 us-gaap_InterestIncomeSecuritiesMortgageBacked | 76,029 us-gaap_InterestIncomeSecuritiesMortgageBacked
Dividends on Other Investments | 115,134 us-gaap_OtherInterestAndDividendIncome | 81,398 us-gaap_OtherInterestAndDividendIncome | 77,203 us-gaap_OtherInterestAndDividendIncome
Interest Income | 44,762,102 us-gaap_InterestAndDividendIncomeOperating | 45,185,721 us-gaap_InterestAndDividendIncomeOperating | 47,289,427 us-gaap_InterestAndDividendIncomeOperating
Interest Expense |  |  |
Deposits | 5,113,024 us-gaap_InterestExpenseDeposits | 5,821,366 us-gaap_InterestExpenseDeposits | 8,737,281 us-gaap_InterestExpenseDeposits
Federal Funds Purchased | 19 us-gaap_InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase | 116 us-gaap_InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase | 0 us-gaap_InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase
Borrowed Money | 1,685,744 us-gaap_InterestExpenseBorrowings | 1,675,164 us-gaap_InterestExpenseBorrowings | 2,279,469 us-gaap_InterestExpenseBorrowings
Interest Expense | 6,798,787 us-gaap_InterestExpense | 7,496,646 us-gaap_InterestExpense | 11,016,750 us-gaap_InterestExpense
Net Interest Income | 37,963,315 us-gaap_InterestIncomeExpenseNet | 37,689,075 us-gaap_InterestIncomeExpenseNet | 36,272,677 us-gaap_InterestIncomeExpenseNet
Provision for Loan Losses | 1,308,000 us-gaap_ProvisionForLoanAndLeaseLosses | 4,485,000 us-gaap_ProvisionForLoanAndLeaseLosses | 6,784,767 us-gaap_ProvisionForLoanAndLeaseLosses
Net Interest Income After Provision for Loan Losses | 36,655,315 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 33,204,075 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 29,487,910 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss
Noninterest Income |  |  |
Service Charges on Deposits | 4,567,716 us-gaap_FeesAndCommissionsDepositorAccounts | 4,690,599 us-gaap_FeesAndCommissionsDepositorAccounts | 3,572,897 us-gaap_FeesAndCommissionsDepositorAccounts
Other Service Charges, Commissions and Fees | 2,468,881 us-gaap_FeesAndCommissionsOther | 1,725,271 us-gaap_FeesAndCommissionsOther | 1,514,898 us-gaap_FeesAndCommissionsOther
Mortgage Fee Income | 419,963 us-gaap_FeesAndCommissionsMortgageBanking | 484,396 us-gaap_FeesAndCommissionsMortgageBanking | 400,009 us-gaap_FeesAndCommissionsMortgageBanking
Securities Gains (Losses) | 23,735 us-gaap_GainLossOnSaleOfSecuritiesNet | (363,804)us-gaap_GainLossOnSaleOfSecuritiesNet | 2,837,464 us-gaap_GainLossOnSaleOfSecuritiesNet
Gain on Sale of SBA Loans | 0 us-gaap_GainLossOnSaleOfOtherLoansAndLeases | 635,190 us-gaap_GainLossOnSaleOfOtherLoansAndLeases | 305,924 us-gaap_GainLossOnSaleOfOtherLoansAndLeases
Other | 1,644,294 us-gaap_NoninterestIncomeOtherOperatingIncome | 1,205,631 us-gaap_NoninterestIncomeOtherOperatingIncome | 1,102,077 us-gaap_NoninterestIncomeOtherOperatingIncome
Noninterest Income | 9,124,589 us-gaap_NoninterestIncome | 8,377,283 us-gaap_NoninterestIncome | 9,733,269 us-gaap_NoninterestIncome
Noninterest Expenses |  |  |
Salaries and Employee Benefits | 17,507,926 us-gaap_LaborAndRelatedExpense | 16,691,972 us-gaap_LaborAndRelatedExpense | 15,564,893 us-gaap_LaborAndRelatedExpense
Occupancy and Equipment | 4,062,844 us-gaap_OccupancyNet | 3,794,524 us-gaap_OccupancyNet | 3,878,268 us-gaap_OccupancyNet
Directors' Fees | 392,132 us-gaap_NoninterestExpenseDirectorsFees | 416,972 us-gaap_NoninterestExpenseDirectorsFees | 465,220 us-gaap_NoninterestExpenseDirectorsFees
Legal and Professional Fees | 785,683 us-gaap_ProfessionalFees | 721,322 us-gaap_ProfessionalFees | 1,085,881 us-gaap_ProfessionalFees
Foreclosed Property | 2,701,436 us-gaap_ForeclosedRealEstateExpense | 3,918,128 us-gaap_ForeclosedRealEstateExpense | 5,613,316 us-gaap_ForeclosedRealEstateExpense
FDIC Assessment | 965,898 us-gaap_FederalDepositInsuranceCorporationPremiumExpense | 1,321,981 us-gaap_FederalDepositInsuranceCorporationPremiumExpense | 1,497,974 us-gaap_FederalDepositInsuranceCorporationPremiumExpense
Advertising | 652,374 us-gaap_AdvertisingExpense | 508,292 us-gaap_AdvertisingExpense | 422,718 us-gaap_AdvertisingExpense
Software | 925,489 us-gaap_InformationTechnologyAndDataProcessing | 852,475 us-gaap_InformationTechnologyAndDataProcessing | 789,226 us-gaap_InformationTechnologyAndDataProcessing
Telephone | 735,735 us-gaap_Communication | 778,151 us-gaap_Communication | 744,930 us-gaap_Communication
ATM/Card Processing | 865,519 cban_AtmCardProcessing | 641,228 cban_AtmCardProcessing | 511,186 cban_AtmCardProcessing
Other | 5,384,956 us-gaap_OtherNoninterestExpense | 4,972,404 us-gaap_OtherNoninterestExpense | 4,805,418 us-gaap_OtherNoninterestExpense
Noninterest Expense | 34,979,992 us-gaap_NoninterestExpense | 34,617,449 us-gaap_NoninterestExpense | 35,379,030 us-gaap_NoninterestExpense
Income Before Income Taxes | 10,799,912 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 6,963,909 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 3,842,149 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Income Taxes | 3,268,287 us-gaap_IncomeTaxExpenseBenefit | 2,334,864 us-gaap_IncomeTaxExpenseBenefit | 1,200,851 us-gaap_IncomeTaxExpenseBenefit
Net Income | 7,531,625 us-gaap_NetIncomeLoss | 4,629,045 us-gaap_NetIncomeLoss | 2,641,298 us-gaap_NetIncomeLoss
Preferred Stock Dividends | 2,688,604 us-gaap_PreferredStockDividendsIncomeStatementImpact | 1,508,761 us-gaap_PreferredStockDividendsIncomeStatementImpact | 1,435,385 us-gaap_PreferredStockDividendsIncomeStatementImpact
Net Income Available to Common Stockholders | $ 4,843,021 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 3,120,284 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 1,205,913 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Net Income Per Share of Common Stock, Basic and Diluted (in dollars per share) | $ 0.57 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.37 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.14 us-gaap_EarningsPerShareBasicAndDiluted
Cash Dividends Declared Per Share of Common Stock (in dollars per share) | $ 0 us-gaap_CommonStockDividendsPerShareDeclared | $ 0 us-gaap_CommonStockDividendsPerShareDeclared | $ 0 us-gaap_CommonStockDividendsPerShareDeclared
Weighted Average Shares Outstanding, Basic and Diluted (in shares) | 8,439,258 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 8,439,258 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 8,439,258 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted

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- Definition The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases. + 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 210.9-04.1) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 1 -Article 9 + Details
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