Loans - Non-accrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
With a Related ACL	$ 2,684	$ 2,036
Without a Related ACL	3,198	2,352
Non-accrual Loans, Total	5,882	4,388
Commercial, financial, and agricultural
Financing Receivable, Nonaccrual [Line Items]
With a Related ACL	41	0
Without a Related ACL	84	564
Non-accrual Loans, Total	125	564
Real Estate Mortgages \| Residential
Financing Receivable, Nonaccrual [Line Items]
With a Related ACL	307	0
Without a Related ACL	530	212
Non-accrual Loans, Total	837	212
Real Estate Mortgages \| Commercial
Financing Receivable, Nonaccrual [Line Items]
With a Related ACL	2,336	2,036
Without a Related ACL	2,576	1,576
Non-accrual Loans, Total	4,912	3,612
Real Estate Mortgages \| Construction
Financing Receivable, Nonaccrual [Line Items]
With a Related ACL	0	0
Without a Related ACL	0	0
Non-accrual Loans, Total	0	0
Consumer automobile loans
Financing Receivable, Nonaccrual [Line Items]
With a Related ACL	0	0
Without a Related ACL	8	0
Non-accrual Loans, Total	8	0
Other consumer installment loans
Financing Receivable, Nonaccrual [Line Items]
With a Related ACL	0	0
Without a Related ACL	0	0
Non-accrual Loans, Total	$ 0	$ 0

Financing Receivable, Nonaccrual, With Allowance

No definition available.

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

- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. 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 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

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

- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. 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 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

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Data Type:	xbrli:monetaryItemType
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- 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/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_AutomobileLoanMember
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- Details

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