Net deferred loan costs included in loan balances.

No definition available.

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Namespace Prefix:	pfis_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Deferral term of paycheck protection program loans.

+ References

No definition available.

+ Details

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Namespace Prefix:	pfis_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of paycheck protection program loans.

+ References

No definition available.

+ Details

Name:	pfis_PaycheckProtectionProgramLoanTerm
Namespace Prefix:	pfis_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of loans processed under the Paycheck Protection Program.

+ References

No definition available.

+ Details

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Namespace Prefix:	pfis_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(e))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

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

- Definition

Amount of loan with fixed rate of interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

+ Details

Name:	us-gaap_LoansReceivableWithFixedRatesOfInterest1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow associated with the sale of loans receivables arising from the financing of goods and services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfLoansReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=pfis_PaycheckProtectionProgramLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=pfis_PaycheckProtectionProgramLoansRoundTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=pfis_PaycheckProtectionProgramLoansRoundOneMember
Namespace Prefix:
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Loans, net and allowance for credit losses - Net Deferred Loan Costs (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($)	Dec. 31, 2021 USD ($) loan	Dec. 31, 2022 USD ($)
Net deferred loan costs	$ 100,000		$ 300,000
PPP
Net deferred loan costs	200,000		200,000
Fixed interest rate	1.00
Loans outstanding	$ 22,200,000		$ 22,300,000
PPP \| Scenario, Loans Issued Before 5 June 2020 [Member]
Term of paycheck protection program	2 years
Deferral term of paycheck protection program	24 months
PPP \| Scenario, Loans Issued After 5 June 2020 [Member]
Term of paycheck protection program	5 years
Deferral term of paycheck protection program	60 months
PPP Two
Net deferred loan costs		$ 4,400,000
Number of loans \| loan		1,062
Proceeds from Sale of Loans Receivable		$ 121,600,000
Loans outstanding	$ 10,900,000
PPP One
Loans outstanding	$ 11,300,000