Defined benefit plan estimated net charge to operations for terminating.

No definition available.

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Data Type:	xbrli:monetaryItemType
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- Definition

Defined benefit plan, termination date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:dateItemType
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- Definition

Real estate property purchase price.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Stock repurchase program percentage of shares authorized to be repurchased.

+ References

No definition available.

+ Details

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Namespace Prefix:	pdlb_
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- Definition

For banks, amount of real estate assets held for development or resale by subsidiary entities which hold such assets in the course of business.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the CCYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
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- Details

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- Details

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Subsequent Events - Additional Information (Details) - USD ($)		12 Months Ended
	Mar. 25, 2019	Dec. 31, 2018	Feb. 07, 2019
Subsequent Event \| Common Stock \| 2018 Long-Term Incentive Plan
Subsequent Event [Line Items]
Stock repurchase program, percentage of shares repurchase	5.00%
Stock repurchase program, expire date	Sep. 24, 2019
Subsequent Event \| Common Stock \| Maximum \| 2018 Long-Term Incentive Plan
Subsequent Event [Line Items]
Stock repurchase program, number of shares repurchase	923,151
Ponce Bank
Subsequent Event [Line Items]
Defined benefit plan estimated net charge to operations		$ 2,500,000
Defined benefit plan termination date		May 31, 2019
Ponce Bank \| 30 East 170th Street Acquisitions LLC
Subsequent Event [Line Items]
Carrying value of the real property		$ 114,000
Ponce Bank \| Subsequent Event \| 30 East 170th Street Acquisitions LLC
Subsequent Event [Line Items]
Purchase price of the real property			$ 4,900,000