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v3.25.1

Deposits (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Deposits |  |
Aggregate amount of deposits reclassified as loans | $ 0.7 | $ 0.2
Time deposits less than $250,000. | $ 256.6 | $ 261.0

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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of less than $250,000. + References No definition available. + Details
Name: | pfis_TimeDepositsLessThan250000
Namespace Prefix: | pfis_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -SubTopic 405 -Topic 942 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478353/942-405-50-1 + Details
Name: | us-gaap_DepositLiabilitiesReclassifiedAsLoansReceivable1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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