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v2.4.1.9

INCOME TAXES (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Current [Abstract] |  |  |
State | $ 606,000 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | $ 395,000 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | $ 530,000 us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Federal | 5,366,000 us-gaap_CurrentFederalTaxExpenseBenefit | 3,548,000 us-gaap_CurrentFederalTaxExpenseBenefit | 4,208,000 us-gaap_CurrentFederalTaxExpenseBenefit
Current income tax expense (benefit), Total | 5,972,000 us-gaap_CurrentIncomeTaxExpenseBenefit | 3,943,000 us-gaap_CurrentIncomeTaxExpenseBenefit | 4,738,000 us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred expense/(benefit) | (2,263,000)us-gaap_DeferredIncomeTaxExpenseBenefit | (121,000)us-gaap_DeferredIncomeTaxExpenseBenefit | 647,000 us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax expense | 3,709,000 us-gaap_IncomeTaxExpenseBenefit | 3,822,000 us-gaap_IncomeTaxExpenseBenefit | 5,385,000 us-gaap_IncomeTaxExpenseBenefit
Reconciliation of income tax expense [Abstract] |  |  |
Tax computed at statutory rate | 4,034,000 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 4,268,000 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 5,578,000 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Tax-exempt interest | (456,000)us-gaap_IncomeTaxReconciliationTaxExemptIncome | (483,000)us-gaap_IncomeTaxReconciliationTaxExemptIncome | (506,000)us-gaap_IncomeTaxReconciliationTaxExemptIncome
Dividend exclusion | (60,000)us-gaap_IncomeTaxReconciliationDeductionsDividends | (46,000)us-gaap_IncomeTaxReconciliationDeductionsDividends | (40,000)us-gaap_IncomeTaxReconciliationDeductionsDividends
State taxes, net of Federal impact | 227,000 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 188,000 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 439,000 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Nondeductible interest expense | 8,000 us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther | 11,000 us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther | 16,000 us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther
Other items, net | (44,000)us-gaap_IncomeTaxReconciliationOtherAdjustments | (116,000)us-gaap_IncomeTaxReconciliationOtherAdjustments | (102,000)us-gaap_IncomeTaxReconciliationOtherAdjustments
Income tax expense | 3,709,000 us-gaap_IncomeTaxExpenseBenefit | 3,822,000 us-gaap_IncomeTaxExpenseBenefit | 5,385,000 us-gaap_IncomeTaxExpenseBenefit
Deferred tax assets [Abstract] |  |  |
Allowance for loan losses | 5,182,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses | 4,889,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses |
Accrual for employee benefit plans | 709,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits | 754,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits |
Depreciation | 1,010,000 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment | 431,000 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment |
Deferred compensation and directors' fees | 1,076,000 chmg_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsDirectorsCompensation | 947,000 chmg_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsDirectorsCompensation |
Purchase accounting adjustment - deposits | 65,000 chmg_DeferredTaxAssetPurchaseAccountingAdjustmentDeposits | 137,000 chmg_DeferredTaxAssetPurchaseAccountingAdjustmentDeposits |
Purchase accounting adjustment - loans | 259,000 chmg_DeferredTaxAssetsPurchaseAccountingAdjustmentLoans | 340,000 chmg_DeferredTaxAssetsPurchaseAccountingAdjustmentLoans |
Purchase accounting adjustment - fixed assets | 221,000 chmg_DeferredTaxAssetsPurchaseAccountingAdjustmentFixedAssets | 224,000 chmg_DeferredTaxAssetsPurchaseAccountingAdjustmentFixedAssets |
Accounting for defined benefit pension and other benefit plans | 6,624,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther | 3,691,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther |
Trust preferred impairment write-down | 540,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses | 742,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses |
Nonaccrued interest | 617,000 chmg_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsNonaccruedInterest | 626,000 chmg_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsNonaccruedInterest |
Accrued expense | 1,580,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | 0 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities |
Other | 456,000 us-gaap_DeferredTaxAssetsOther | 647,000 us-gaap_DeferredTaxAssetsOther |
Total gross deferred tax assets | 18,339,000 us-gaap_DeferredTaxAssetsGross | 13,428,000 us-gaap_DeferredTaxAssetsGross |
Deferred tax liabilities [Abstract] |  |  |
Deferred loan fees and costs | 910,000 us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts | 929,000 us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts |
Prepaid pension | 5,179,000 us-gaap_DeferredTaxLiabilitiesPrepaidExpenses | 5,435,000 us-gaap_DeferredTaxLiabilitiesPrepaidExpenses |
Net unrealized gains on securities available for sale | 1,359,000 chmg_DeferredTaxLiabilitiesNetUnrealizedGainsOnSecuritiesAvailableForSale | 3,929,000 chmg_DeferredTaxLiabilitiesNetUnrealizedGainsOnSecuritiesAvailableForSale |
Discount accretion | 410,000 chmg_DeferredTaxLiabilitiesDeferredExpenseDiscountAccretion | 352,000 chmg_DeferredTaxLiabilitiesDeferredExpenseDiscountAccretion |
Core deposit intangible | 1,479,000 us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets | 1,556,000 us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets |
Other | 153,000 us-gaap_DeferredTaxLiabilitiesOther | 144,000 us-gaap_DeferredTaxLiabilitiesOther |
Total gross deferred tax liabilities | 9,490,000 us-gaap_DeferredIncomeTaxLiabilities | 12,345,000 us-gaap_DeferredIncomeTaxLiabilities |
Net deferred tax asset | 8,849,000 us-gaap_DeferredTaxAssetsLiabilitiesNet | 1,083,000 us-gaap_DeferredTaxAssetsLiabilitiesNet |
Unrecognized tax benefits | 0 us-gaap_UnrecognizedTaxBenefits | 0 us-gaap_UnrecognizedTaxBenefits | 0 us-gaap_UnrecognizedTaxBenefits
Accrued interest or penalties related to uncertain tax positions | $ 0 us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued | $ 0 us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued | $ 0 us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

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- Definition Amount of deferred tax liability attributable to taxable temporary differences from deferred financing costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for dividend. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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