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Loans (Activity For The Accretable Yield And Carrying Amount Of Loans) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014
Virginia Savings Bank [Member] |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] |
Balance at the beginning of the period | $ 698 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Accretion | (288)us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Net reclassifications to accretable from non-accretable | 385 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Disposals | (248)us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Balance at the end of the period | 547 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Carrying Amount Net [Roll Forward] |
Balance at the beginning of the period | 3,182 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Accretion | 288 chco_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountAccretion / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Payments received, net | (1,506)chco_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountPaymentsReceivedNet / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Disposals | 0 chco_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountDisposals / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Balance at the end of the period | 1,964 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankMember
Community Bank [Member] |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] |
Balance at the beginning of the period | 10,389 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Accretion | (2,725)us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Net reclassifications to accretable from non-accretable | 4,121 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Disposals | (1,420)us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Balance at the end of the period | 10,365 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Carrying Amount Net [Roll Forward] |
Balance at the beginning of the period | 26,330 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Accretion | 2,725 chco_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountAccretion / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Payments received, net | (13,690)chco_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountPaymentsReceivedNet / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Balance at the end of the period | 15,365 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet / us-gaap_BusinessAcquisitionAxis = chco_CommunityBankMember
Virginia Savings Bank and Community Bank [Member] |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] |
Balance at the beginning of the period | 11,087 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Accretion | (3,013)us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Net reclassifications to accretable from non-accretable | 4,506 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Disposals | (1,668)us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Balance at the end of the period | 10,912 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Carrying Amount Net [Roll Forward] |
Balance at the beginning of the period | 29,512 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Accretion | 3,013 chco_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountAccretion / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Payments received, net | (15,196)chco_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountPaymentsReceivedNet / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Disposals | 0 chco_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountDisposals / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember
Balance at the end of the period | $ 17,329 us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet / us-gaap_BusinessAcquisitionAxis = chco_VirginiaSavingsBankandCommunityBankMember

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- Definition Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Payments Received Net + References No definition available. + Details
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- Definition Amount of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition Amount of decrease from accretion of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition Amount of reduction, resulting from a sale or transfer of a loan, in the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition Amount of increase of reclassification from nonaccretable difference to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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