XML 69 R59.htm IDEA: XBRL DOCUMENT
v3.25.3

Loans, net and allowance for credit losses - Major Classification of Loans Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | $ 411,077 | $ 365,944
Year 2 | 340,979 | 427,965
Year 3 | 368,012 | 955,611
Year 4 | 836,515 | 855,257
Year 5 | 745,626 | 257,621
Prior | 937,519 | 796,306
Revolving Loans Amortized Cost Basis | 375,020 | 334,666
Revolving Loans Converted to Term | 1,619 | 135
Total | 4,016,367 | 3,993,505
Gross charge-offs, Year 1 | 46 | 90
Gross charge-offs, Year 2 | 187 | 837
Gross charge-offs, Year 3 | 951 | 364
Gross charge-offs, Year 4 | 936 | 185
Gross charge-offs, Year 5 | 129 | 32
Gross charge-offs, Prior | 624 | 377
Total | 2,873 | 1,885
Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 65,085 | 62,930
Year 2 | 67,214 | 70,760
Year 3 | 60,831 | 84,663
Year 4 | 66,423 | 78,867
Year 5 | 53,119 | 32,078
Prior | 111,968 | 93,764
Revolving Loans Amortized Cost Basis | 238,838 | 224,972
Revolving Loans Converted to Term | 1,137 | 68
Total | 664,615 | 648,102
Gross charge-offs, Year 2 |  | 41
Gross charge-offs, Year 4 | 24 | 2
Gross charge-offs, Year 5 | 57 |
Gross charge-offs, Prior | 491 | 8
Total | 572 | 51
Municipal |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 21,706 | 5,072
Year 2 | 4,594 | 6,254
Year 3 | 1,328 | 50,886
Year 4 | 47,935 | 99,064
Year 5 | 95,785 | 9,932
Prior | 22,479 | 13,816
Revolving Loans Amortized Cost Basis | 2,642 | 2,894
Total | 196,469 | 187,918
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 217,182 | 162,417
Year 2 | 152,179 | 200,101
Year 3 | 187,062 | 662,861
Year 4 | 601,078 | 530,700
Year 5 | 476,531 | 160,309
Prior | 644,116 | 577,725
Revolving Loans Amortized Cost Basis | 116 |
Revolving Loans Converted to Term | 482 |
Total | 2,278,746 | 2,294,113
Gross charge-offs, Year 4 | 62 |
Gross charge-offs, Prior | 95 | 282
Total | 157 | 282
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 43,831 | 39,488
Year 2 | 38,460 | 45,172
Year 3 | 41,899 | 77,862
Year 4 | 69,329 | 123,280
Year 5 | 107,339 | 51,127
Prior | 155,094 | 108,442
Revolving Loans Amortized Cost Basis | 132,567 | 105,945
Revolving Loans Converted to Term |  | 67
Total | 588,519 | 551,383
Gross charge-offs, Year 4 | 92 |
Total | 92 |
Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 22,345 | 28,937
Year 2 | 22,464 | 38,379
Year 3 | 27,488 | 38,877
Year 4 | 25,700 | 19,087
Year 5 | 11,794 | 4,175
Prior | 3,862 | 2,559
Revolving Loans Amortized Cost Basis | 857 | 855
Total | 114,510 | 132,869
Gross charge-offs, Year 1 |  | 90
Gross charge-offs, Year 2 | 153 | 245
Gross charge-offs, Year 3 | 240 | 255
Gross charge-offs, Year 4 | 294 | 183
Gross charge-offs, Year 5 | 72 | 32
Gross charge-offs, Prior | 38 | 87
Total | 797 | 892
Equipment financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 40,928 | 67,100
Year 2 | 56,068 | 67,299
Year 3 | 49,404 | 40,462
Year 4 | 26,050 | 4,259
Year 5 | 1,058 |
Total | 173,508 | 179,120
Gross charge-offs, Year 1 | 46 |
Gross charge-offs, Year 2 | 34 | 551
Gross charge-offs, Year 3 | 711 | 109
Gross charge-offs, Year 4 | 464 |
Total | 1,255 | 660
Pass | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 64,424 | 61,657
Year 2 | 66,028 | 69,329
Year 3 | 59,297 | 83,123
Year 4 | 65,400 | 64,488
Year 5 | 52,347 | 29,950
Prior | 109,230 | 91,906
Revolving Loans Amortized Cost Basis | 229,520 | 199,737
Revolving Loans Converted to Term | 272 | 68
Total | 646,518 | 600,258
Pass | Municipal |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 21,706 | 5,072
Year 2 | 4,594 | 6,254
Year 3 | 1,328 | 50,886
Year 4 | 47,935 | 99,064
Year 5 | 95,785 | 9,932
Prior | 22,479 | 13,816
Revolving Loans Amortized Cost Basis | 2,642 | 2,894
Total | 196,469 | 187,918
Pass | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 216,604 | 161,186
Year 2 | 150,957 | 196,779
Year 3 | 183,586 | 651,254
Year 4 | 592,251 | 525,233
Year 5 | 465,555 | 156,970
Prior | 610,483 | 538,905
Revolving Loans Amortized Cost Basis | 116 |
Revolving Loans Converted to Term | 397 |
Total | 2,219,949 | 2,230,327
Pass | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 43,831 | 39,488
Year 2 | 38,460 | 45,172
Year 3 | 41,899 | 77,862
Year 4 | 69,329 | 123,154
Year 5 | 107,218 | 50,831
Prior | 154,143 | 106,877
Revolving Loans Amortized Cost Basis | 132,490 | 105,867
Revolving Loans Converted to Term |  | 67
Total | 587,370 | 549,318
Pass | Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 22,345 | 28,872
Year 2 | 22,428 | 38,223
Year 3 | 27,359 | 38,668
Year 4 | 25,462 | 18,963
Year 5 | 11,617 | 4,132
Prior | 3,723 | 2,495
Revolving Loans Amortized Cost Basis | 855 | 853
Total | 113,789 | 132,206
Pass | Equipment financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 40,597 | 67,100
Year 2 | 55,340 | 66,341
Year 3 | 48,703 | 39,323
Year 4 | 25,170 | 4,259
Year 5 | 1,058 |
Total | 170,868 | 177,023
Special mention | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 661 | 1,273
Year 2 | 1,186 | 1,131
Year 3 | 1,113 | 686
Year 4 | 499 | 13,475
Year 5 | 43 | 2,043
Prior | 2,676 | 1,261
Revolving Loans Amortized Cost Basis | 1,532 | 16,840
Revolving Loans Converted to Term | 865 |
Total | 8,575 | 36,709
Special mention | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 578 | 1,231
Year 2 |  | 46
Year 3 |  | 2,724
Year 4 | 925 | 4,361
Year 5 | 4,623 | 1,635
Prior | 25,778 | 24,951
Revolving Loans Converted to Term | 85 |
Total | 31,989 | 34,948
Special mention | Equipment financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 |  | 261
Year 3 | 137 | 125
Year 4 | 16 |
Total | 153 | 386
Substandard | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 |  | 300
Year 3 | 421 | 854
Year 4 | 524 | 904
Year 5 | 729 | 85
Prior | 62 | 597
Revolving Loans Amortized Cost Basis | 7,786 | 8,395
Total | 9,522 | 11,135
Substandard | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 | 1,222 | 3,276
Year 3 | 3,476 | 8,883
Year 4 | 7,902 | 1,106
Year 5 | 6,353 | 1,704
Prior | 7,855 | 13,869
Total | 26,808 | 28,838
Substandard | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 4 |  | 126
Year 5 | 121 | 296
Prior | 951 | 1,565
Revolving Loans Amortized Cost Basis | 77 | 78
Total | 1,149 | 2,065
Substandard | Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 |  | 65
Year 2 | 36 | 156
Year 3 | 129 | 209
Year 4 | 238 | 124
Year 5 | 177 | 43
Prior | 139 | 64
Revolving Loans Amortized Cost Basis | 2 | 2
Total | 721 | 663
Substandard | Equipment financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 331 |
Year 2 | 728 | 697
Year 3 | 564 | 1,014
Year 4 | 864 |
Total | $ 2,487 | $ 1,711

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References No definition available. + Details
Name: | pfis_FinancingReceivablesExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | pfis_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 40 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481628/310-20-40-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=pfis_MunicipalPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=pfis_EquipmentFinancingPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |