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Note 9 - Financial Instruments with Off-Balance Sheet Risk (Details) (USD $) | Jun. 30, 2014
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Risks and Uncertainties [Abstract] |
Banks Reserve Based on Analysis in Unfunded Commitments | $ 12,000

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- Definition Banks reserve based on analysis in unfunded commitments. + References No definition available. + Details
Name: | pnbk_BanksReserveBasedOnAnalysisInUnfundedCommitments
Namespace Prefix: | pnbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | us-gaap_RisksAndUncertaintiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration