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12. Regulatory Matters (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Total capital (to Risk-Weighted Assets) | Consolidated    
Actual, amount $ 122,732us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
$ 114,185us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
Actual, ratio 16.62%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
16.14%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
For Capital Adequacy Purposes, amount 59,085us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
56,582us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
For Capital Adequacy Purposes, ratio 8.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
8.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, amount 0us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
0us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, ratio 0.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
0.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
Total capital (to Risk-Weighted Assets) | Bank    
Actual, amount 118,356us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
110,935us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
Actual, ratio 16.06%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
15.73%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
For Capital Adequacy Purposes, amount 58,974us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
56,412us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
For Capital Adequacy Purposes, ratio 8.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
8.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, amount 73,717us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
70,515us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, ratio 10.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
10.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_TotalCapitalMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
Tier 1 Capital (to Risk- Weighted Assets) | Consolidated    
Actual, amount 113,211us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
104,890us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
Actual, ratio 15.33%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
14.83%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
For Capital Adequacy Purposes, amount 29,542us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
28,291us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
For Capital Adequacy Purposes, ratio 4.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
4.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, amount 0us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
0us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, ratio 0.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
0.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
Tier 1 Capital (to Risk- Weighted Assets) | Bank    
Actual, amount 108,934us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
101,733us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
Actual, ratio 14.78%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
14.43%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
For Capital Adequacy Purposes, amount 29,487us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
28,206us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
For Capital Adequacy Purposes, ratio 4.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
4.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, amount 44,230us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
42,309us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, ratio 6.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
6.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalRiskWeighedAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
Tier 1 Capital (Average Assets) | Consolidated    
Actual, amount 113,211us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
104,890us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
Actual, ratio 10.74%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
10.08%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
For Capital Adequacy Purposes, amount 42,181us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
41,622us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
For Capital Adequacy Purposes, ratio 4.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
4.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, amount 0us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
0us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, ratio 0.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
0.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_ConsolidatedAmountMember
Tier 1 Capital (Average Assets) | Bank    
Actual, amount 108,934us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
101,733us-gaap_Capital
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
Actual, ratio 10.33%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
9.79%us-gaap_CapitalToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
For Capital Adequacy Purposes, amount 42,164us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
41,584us-gaap_CapitalRequiredForCapitalAdequacy
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
For Capital Adequacy Purposes, ratio 4.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
4.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, amount $ 52,706us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
$ 51,981us-gaap_CapitalRequiredToBeWellCapitalized
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
To Be Well Capitalized Under Prompt Corrective Action Provisions, ratio 5.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember
5.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
/ us-gaap_RegulatoryAssetAxis
= PEBK_CapitalAverageAssetsMember
/ us-gaap_StatementBusinessSegmentsAxis
= PEBK_BankAmountMember