XML 1040 R57.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Securities (Details 3) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Summary of structured pooled trust preferred securities |  |  |
Adjusted Amortized Cost | $ 800 |  |
Unrealized Gain (Loss) | (200) |  |
Fair Value | 600 |  |
Credit Losses Realized in Earnings |  | 398 | 2,241
ALESCO Preferred Funding V, Ltd [Member] |  |  |
Summary of structured pooled trust preferred securities |  |  |
Adjusted Amortized Cost | 800 |  |
Unrealized Gain (Loss) | (200) |  |
Fair Value | 600 |  |
Credit Losses Realized in Earnings |  |  | 440
ALESCO Preferred Funding XII, Ltd [Member] |  |  |
Summary of structured pooled trust preferred securities |  |  |
Adjusted Amortized Cost |  |  |
Unrealized Gain (Loss) |  |  |
Fair Value |  |  |
Credit Losses Realized in Earnings |  | 280 | 933
ALESCO Preferred Funding XVII, Ltd [Member] |  |  |
Summary of structured pooled trust preferred securities |  |  |
Adjusted Amortized Cost |  |  |
Unrealized Gain (Loss) |  |  |
Fair Value |  |  |
Credit Losses Realized in Earnings |  |  |
Preferred Term Securities XVI, Ltd [Member] |  |  |
Summary of structured pooled trust preferred securities |  |  |
Adjusted Amortized Cost |  |  |
Unrealized Gain (Loss) |  |  |
Fair Value |  |  |
Credit Losses Realized in Earnings |  | 118 | 868
US Capital Funding VI, Ltd. [Member] |  |  |
Summary of structured pooled trust preferred securities |  |  |
Adjusted Amortized Cost |  |  |
Unrealized Gain (Loss) |  |  |
Fair Value |  |  |
Credit Losses Realized in Earnings |  |  |

X
- Definition Preferred securities adjusted amortized cost basis. + References No definition available. + Details
Name: | ccne_PreferredSecuritiesAdjustedAmortizedCostBasis
Namespace Prefix: | ccne_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Preferred securities credit losses realized included in earning. + References No definition available. + Details
Name: | ccne_PreferredSecuritiesCreditLossesRealizedIncludedInEarning
Namespace Prefix: | ccne_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Preferred securities fair value disclosure. + References No definition available. + Details
Name: | ccne_PreferredSecuritiesFairValueDisclosure
Namespace Prefix: | ccne_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ccne_StructuredPooledTrustPreferredSecuritiesAbstract
Namespace Prefix: | ccne_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unrealized gain loss on preferred securities. + References No definition available. + Details
Name: | ccne_UnrealizedGainLossOnPreferredSecurities
Namespace Prefix: | ccne_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant