XML 25 R61.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Fair Value and Interest Rate Risk (Details Textual) | 6 Months Ended
--- | ---
Jun. 30, 2012
Fair Value and Interest Rate Risk (Textual) [Abstract] |
Short-term borrowings | 90 days

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

X
- Definition Maturing period of borrowings under short term repurchase agreements and other short term borrowings. + References No definition available. + Details
Name: | pnbk_MaturingPeriodOfBorrowingsUnderShortTermRepurchaseAgreementsAndOtherShortTermBorrowings
Namespace Prefix: | pnbk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration