XML 42 R32.htm IDEA: XBRL DOCUMENT
v3.21.2

Summary of significant accounting policies - Nature of operations and Basis of presentation (Details) | 6 Months Ended
--- | ---
Jun. 30, 2021 Office
Summary of significant accounting policies |
Number of full-service community banking offices | 26

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