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Note 13 - Leases (Details Textual) $ in Thousands | Mar. 31, 2019 USD ($) | Jan. 01, 2019 USD ($)
--- | --- | ---
Number of Operating Leases, Lessee | 7 |
Number of Operating Leases in Bank Branch Locations, Lessee | 4 |
Number of Operating Leases in Administrative and Operational Spaces, Lessee | 2 |
Number of Operating Leases in Equipment Leases, Lessee | 1 |
Operating Lease, Right-of-Use Asset | $ 3,305 |
Operating Lease, Liability, Total | $ 3,361 |
Accounting Standards Update 2016-02 [Member] |  |
Operating Lease, Right-of-Use Asset |  | $ 3,400
Operating Lease, Liability, Total |  | $ 3,400

X
- Definition The number of lessee held operating leases in administrative and operational spaces. + References No definition available. + Details
Name: | pnbk_NumberOfOperatingLeasesInAdministrativeAndOperationalSpacesLessee
Namespace Prefix: | pnbk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of lessee held operating leases in bank branch locations. + References No definition available. + Details
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Namespace Prefix: | pnbk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of lessee held operating leases in equipment leases. + References No definition available. + Details
Name: | pnbk_NumberOfOperatingLeasesInEquipmentLeasesLessee
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- Definition The number of lessee held operating leases. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
Balance Type: | na
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X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
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