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Loans, net and allowance for loan losses - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2014 SecurityLoan | Mar. 31, 2013 SecurityLoan | Dec. 31, 2013
Receivables [Abstract] |  |  |
Net deferred loan costs | $ 159 |  | $ 24
Loans receivable, related parties, considered as nonaccrual, past due or restructured or potential credit risk | $ 1,924 | $ 349 | $ 2,487
Number of loans modified as troubled debt restructurings | 0 | 0 |

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- Definition Deferred Loan Costs Net + References No definition available. + Details
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- Definition Loans And Leases Receivable, Related Parties Impaired Nonperforming Nonaccrual Of Interest + References No definition available. + Details
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Namespace Prefix: | pfis_
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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524 + Details
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- Details
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