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v3.26.1

Deposits (Details) $ in Millions | Jun. 30, 2026 USD ($)
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Deposits |
Amount of interest-bearing third-party deposits | $ 347.7
Amount of interest-bearing brokered time deposits | 337.0
Amount of money in interest-bearing accounts | 7.5
Amount of interest-bearing money market demand | $ 3.2

X
- Definition Amount of interest-bearing third-party deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities. + References No definition available. + Details
Name: | pfis_InterestBearingDepositBrokered
Namespace Prefix: | pfis_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of interest-bearing brokered time deposits. Time deposits bear interest for a fixed, stated period of time and include certificate of deposits and individual retirement accounts. + References No definition available. + Details
Name: | pfis_InterestBearingDepositBrokeredTimeDeposits
Namespace Prefix: | pfis_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of money in interest-bearing accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits. + References No definition available. + Details
Name: | pfis_InterestBearingDepositDemand
Namespace Prefix: | pfis_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of interest-bearing money market demand account deposit liabilities. + References No definition available. + Details
Name: | pfis_InterestBearingDepositMoneyMarket
Namespace Prefix: | pfis_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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