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Note 4 - Deposits (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2016
Disclosure Text Block [Abstract] |
Schedule of Deposits [Table Text Block] |
|  | March 31, |  |  | December 31, |
(in thousands) |  | 2016 |  |  | 2015 |
Non-interest bearing |  | $ | 79,483 |  |  | $ | 85,065 |
Interest bearing |  |  |  |  |  |  |  |
NOW |  |  | 28,913 |  |  |  | 28,684 |
Savings |  |  | 120,051 |  |  |  | 108,658 |
Money market |  |  | 19,007 |  |  |  | 19,522 |
Time certificates, less than $250,000 |  |  | 128,490 |  |  |  | 139,455 |
Time certificates, $250,000 or more |  |  | 16,520 |  |  |  | 17,509 |
Brokered Deposits |  |  | 33,173 |  |  |  | 48,154 |
Total interest bearing |  |  | 346,154 |  |  |  | 361,982 |
Total Deposits |  | $ | 425,637 |  |  | $ | 447,047 |

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- Definition Schedule of deposits. + References No definition available. + Details
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Namespace Prefix: | pnbk_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration