XML 58 R97.htm IDEA: XBRL DOCUMENT v2.4.1.9

Borrowings - Schedule of Remaining Borrowing Capacity with FHLB (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2009	Feb. 29, 2008	Aug. 31, 2008	Aug. 10, 2010	Oct. 31, 2009
Interest Rate 0.27% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	0.27%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateOneMember
Interest Rate 2.09% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	2.09%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateTwoMember
Interest Rate 4.60% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	4.60%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateThreeMember	4.60%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateThreeMember	4.60%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateThreeMember
FHLB advances, floating rate description	3 month LIBOR + 0.16%
FHLB advances, basis spread on floating rate	0.16%ccne_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateBasisSpread / us-gaap_DebtInstrumentAxis = ccne_InterestRateThreeMember
Interest Rate 4.02% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	4.02%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateFourMember	4.02%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateFourMember		4.02%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateFourMember
FHLB advances, floating rate description	3 month LIBOR + 0.11%
FHLB advances, basis spread on floating rate	0.11%ccne_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateBasisSpread / us-gaap_DebtInstrumentAxis = ccne_InterestRateFourMember
Interest Rate 4.10% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	4.10%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateFiveMember	4.10%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateFiveMember			4.10%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateFiveMember
FHLB advances, floating rate description	3 month LIBOR + 0.11%.
FHLB advances, basis spread on floating rate	0.11%ccne_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateBasisSpread / us-gaap_DebtInstrumentAxis = ccne_InterestRateFiveMember
Interest Rate 4.47% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	4.47%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateSixMember	4.47%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateSixMember				4.47%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateSixMember
FHLB advances, floating rate description	3 month LIBOR + 0.11%.
FHLB advances, basis spread on floating rate	0.11%ccne_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateBasisSpread / us-gaap_DebtInstrumentAxis = ccne_InterestRateSixMember
Interest Rate 3.97% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	3.97%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateSevenMember	3.97%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateSevenMember					3.97%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateSevenMember
FHLB advances, floating rate description	3 month LIBOR + 0.10%.
FHLB advances, basis spread on floating rate	0.10%ccne_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateBasisSpread / us-gaap_DebtInstrumentAxis = ccne_InterestRateSevenMember
Interest Rate 4.72% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	4.72%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateEightMember
Interest Rate 4.31% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	4.31%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateNineMember
Interest Rate 3.05% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	3.05%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateTenMember
Interest Rate 5.24%[Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	5.24%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateElevenMember
Interest Rate 3.35% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	3.35%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateTwelveMember
Interest Rate 4.00% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	4.00%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateThirteenMember
Interest Rate 3.23% [Member]
Borrowings Under Repurchase Agreements [Line items]
Fixed rate on borrowings	3.23%ccne_FederalHomeLoanBankAdvancesOpenRepoInterestRatePercentage / us-gaap_DebtInstrumentAxis = ccne_InterestRateFourteenMember

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