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3. Loans, TDR Loan Modifications (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Integer
Mar. 31, 2014
Integer
TDR Loans    
Number of Contracts 1us-gaap_FinancingReceivableModificationsNumberOfContracts2 8us-gaap_FinancingReceivableModificationsNumberOfContracts2
Pre-Modification Outstanding Recorded Investment $ 146us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2 $ 1,550us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Post-Modification Outstanding Recorded Investment 146us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2 1,550us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Construction and land development    
TDR Loans    
Number of Contracts   1us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ us-gaap_InternalCreditAssessmentAxis
= PEBK_ConstructionAndLandDevelopmentMember
Pre-Modification Outstanding Recorded Investment   316us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= PEBK_ConstructionAndLandDevelopmentMember
Post-Modification Outstanding Recorded Investment   316us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= PEBK_ConstructionAndLandDevelopmentMember
Single-family residential    
TDR Loans    
Number of Contracts 1us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_ResidentialRealEstateMember
1us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_ResidentialRealEstateMember
Pre-Modification Outstanding Recorded Investment 146us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_ResidentialRealEstateMember
737us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_ResidentialRealEstateMember
Post-Modification Outstanding Recorded Investment 146us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_ResidentialRealEstateMember
737us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_ResidentialRealEstateMember
Single-family residential - Banco de la Gente stated income    
TDR Loans    
Number of Contracts   6us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ us-gaap_InternalCreditAssessmentAxis
= PEBK_BancoDeLaGenteMember
Pre-Modification Outstanding Recorded Investment   497us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= PEBK_BancoDeLaGenteMember
Post-Modification Outstanding Recorded Investment   497us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= PEBK_BancoDeLaGenteMember
Total real estate loans    
TDR Loans    
Number of Contracts 1us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RealEstateMember
8us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RealEstateMember
Pre-Modification Outstanding Recorded Investment 146us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RealEstateMember
1,550us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RealEstateMember
Post-Modification Outstanding Recorded Investment $ 146us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RealEstateMember
$ 1,550us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RealEstateMember