XML 81 R91.htm IDEA: XBRL DOCUMENT
v2.4.0.6

401(k) Savings Plan (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 Age | Dec. 31, 2011 | Dec. 31, 2010
401(k) Savings Plan (Textual) [Abstract] |  |  |
Period of service required for savings plan covering | 6 months |  |
Age required for savings plan covering | 21 |  |
Company matching contribution | 50.00% |  |
Contribution to participants salary, maximum | 6.00% |  |
Company contribution towards savings plan | $ 160,000 | $ 201,000 | $ 206,000

X
- Definition Defined benefit plan eligible age for employee. + References No definition available. + Details
Name: | pnbk_DefinedBenefitPlanEligibleAgeForEmployee
Namespace Prefix: | pnbk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined benefit plan employee eligible service period. + References No definition available. + Details
Name: | pnbk_DefinedBenefitPlanEmployeeEligibleServicePeriod
Namespace Prefix: | pnbk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration