OTHER OPERATING EXPENSES (Schedule of Components of Other Operating Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Other operating expenses
Professional and legal fees	$ 1,645	$ 1,693	$ 2,835	$ 3,055
Trust department expense	1,092	936	2,135	1,874
Telephone	354	397	784	792
Loan expense	909	205	1,334	432
Amortization of intangible assets	271	272	543	544
Advertising	919	625	1,073	968
Other operating expenses	2,956	2,468	5,994	4,470
Total other operating expenses	$ 8,146	$ 6,596	$ 14,698	$ 12,135

This element refers to other operating expenses.

No definition available.

Name:	pgc_OtherOperatingExpenses
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Trust department expense

+ References

No definition available.

+ Details

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Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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- Definition

The amount of expense incurred in the period for communication, which is the exchange of information by several methods.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The loan servicing fees paid to third parties that relate to loan expenses for a portfolio containing the entire group of loans owned by the company.

+ References

+ Details

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- Definition

Amount of expense classified as other.

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- References

No definition available.

+ Details

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- Definition

A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

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