XML 64 R49.htm IDEA: XBRL DOCUMENT
v3.19.1

Summary of significant accounting policies - Additional Information (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 USD ($) Office | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Jan. 01, 2019 USD ($) | Jan. 01, 2018 USD ($)
Number of full-service community banking offices | Office | 27 |  |  |  |
Number of limited purpose banking offices | $ 1 |  |  |  |
Reclassification of prior period items amounts effect on net income | $ 0 |  |  |  |
Debt service coverage ratio | 1.2 |  |  |  |
Non performing loans past due period for Non-accrual status | 90 days |  |  |  |
Maximum days of consumer loans past due | 120 days |  |  |  |
Impairment losses on intangible assets | $ 0 | $ 0 | $ 0 |  |
Advertising expense | $ 720,000 | 942,000 | 972,000 |  |
Income tax benefit recognition threshold | 50.00% |  |  |  |
Unrecognized tax benefit or accrued interest and penalties | $ 0 | $ 0 | $ 0 |  |
Minimum |  |  |  |  |
Contractual terms | 6 months |  |  |  |
Maximum |  |  |  |  |
Finite useful life of intangible assets | 10 years |  |  |  |
Commercial Real Estate |  |  |  |  |
Maximum loan to value percentage | 80.00% |  |  |  |
Residential Mortgage | Maximum |  |  |  |  |
Maximum amortization period | 30 years |  |  |  |
Accounting Standards Update 2016-02 | Restatement Adjustment |  |  |  |  |
Lease liabilities for operating leases |  |  |  | $ 5,500,000 |
Right-of-use assets |  |  |  | $ 5,500,000 |
Retained Earnings | Accounting Standards Update 2018-02 |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  | $ 1,101,000
Accumulated Other Comprehensive Loss | Accounting Standards Update 2018-02 |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  | $ (1,101,000)

X
- Definition The maximum number of days at which a loan is considered a loss and charged-off. + References No definition available. + Details
Name: | pfis_ConsumerLoansPeriod
Namespace Prefix: | pfis_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The contractual terms of a loan. + References No definition available. + Details
Name: | pfis_ContractualTermPeriod
Namespace Prefix: | pfis_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of days past due for nonperforming loans which include nonaccrual loans and troubled debt restructured loans. + References No definition available. + Details
Name: | pfis_FinanceReceivablePastDuePeriodForNonaccrualStatus
Namespace Prefix: | pfis_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The threshold of income tax benefit recognition. + References No definition available. + Details
Name: | pfis_IncomeTaxBenefitRecognitionThreshold
Namespace Prefix: | pfis_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum debt service coverage ratio. + References No definition available. + Details
Name: | pfis_MaximumDebtServiceCoverageRatio
Namespace Prefix: | pfis_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of full-service community banking offices. + References No definition available. + Details
Name: | pfis_NumberOfFullServiceBankingOffices
Namespace Prefix: | pfis_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of limited purpose banking offices. + References No definition available. + Details
Name: | pfis_NumberOfLimitedPurposeBankingOffices
Namespace Prefix: | pfis_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The maximum loan to value percentage. + References No definition available. + Details
Name: | pfis_RegulatoryMaximumOnLoanToValuePercentage
Namespace Prefix: | pfis_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum amortization period of a loan. + References No definition available. + Details
Name: | pfis_RegulatoryMaximumTermOfLoan
Namespace Prefix: | pfis_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
Name: | us-gaap_AdvertisingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
Name: | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of a reclassification adjustment made to prior period financial statement amounts. + References No definition available. + Details
Name: | us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
Name: | us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RestatementAxis=srt_RestatementAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=pfis_AccountingStandardsUpdate201802Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |