OTHER OPERATING EXPENSES (Schedule of Components of Other Operating Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other operating expenses
Professional and legal fees	$ 1,619	$ 1,180	$ 4,143	$ 3,630
Telephone	407	403	1,138	1,085
Advertising	482	574	1,584	1,545
Amortization of intangible assets	339	384	1,048	1,204
Branch/office restructure			175	372
Other operating expenses	3,347	3,319	9,889	9,587
Total other operating expenses	$ 6,194	$ 5,860	$ 17,977	$ 17,423

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

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 720
-SubTopic 35
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
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+ Details

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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

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-Topic 220
-SubTopic 10
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- Definition

Amount of expense classified as other.

+ References

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-SubTopic 10
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-Section S99
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- References

No definition available.

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- Definition

Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

+ References

+ 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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