Regulatory Capital Requirements - Summary of Actual Capital Amounts and Ratios As Compared to Regulatory Requirements (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
PDL Community Bancorp
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Capital to Risk-Weighted Assets, Actual Amount	$ 178,496	$ 186,940
Tier 1 Capital to Risk-Weighted Assets, Actual Amount	168,502	177,307
Common Equity Tier 1 Capital Ratio, Actual Amount	168,502	177,307
Tier 1 Capital to Total Assets, Actual Amount	$ 168,502	$ 177,307
Total Capital to Risk-Weighted Assets, Actual Ratio	22.40%	24.36%
Tier 1 Capital to Risk-Weighted Assets, Actual Ratio	21.14%	23.11%
Common Equity Tier 1 Capital Ratio, Actual Ratio	21.14%	23.11%
Tier 1 Capital to Total Assets, Actual Ratio	15.98%	18.13%
Total Capital to Risk-Weighted Assets, For Capital Adequacy Amount	$ 63,761	$ 61,385
Tier 1 Capital to Risk-Weighted Assets, For Capital Adequacy Amount	47,820	46,038
Common Equity Tier 1 Capital Ratio, For Capital Adequacy Amount	35,865	34,529
Tier 1 Capital to Total Assets, For Capital Adequacy Amount	$ 42,185	$ 39,114
Total Capital to Risk-Weighted Assets, For Capital Adequacy Ratio	8.00%	8.00%
Tier 1 Capital to Risk-Weighted Assets, For Capital Adequacy Ratio	6.00%	6.00%
Common Equity Tier 1 Capital Ratio, For Capital Adequacy Ratio	4.50%	4.50%
Tier 1 Capital to Total Assets, For Capital Adequacy Ratio	4.00%	4.00%
Total Capital to Risk-Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 79,701	$ 76,731
Tier 1 Capital to Risk-Weighted Assets, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	63,761	61,385
Common Equity Tier 1 Capital Ratio, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	51,806	49,875
Tier 1 Capital to Total Assets, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 52,732	$ 48,892
Total Capital to Risk-Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	10.00%	10.00%
Tier 1 Capital to Risk-Weighted Assets, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	8.00%	8.00%
Common Equity Tier 1 Capital Ratio, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.50%	6.50%
Tier 1 Capital to Total Assets, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	5.00%	5.00%
Ponce Bank
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Capital to Risk-Weighted Assets, Actual Amount	$ 153,434	$ 148,486
Tier 1 Capital to Risk-Weighted Assets, Actual Amount	143,458	138,872
Common Equity Tier 1 Capital Ratio, Actual Amount	143,458	138,872
Tier 1 Capital to Total Assets, Actual Amount	$ 143,458	$ 138,872
Total Capital to Risk-Weighted Assets, Actual Ratio	19.29%	19.39%
Tier 1 Capital to Risk-Weighted Assets, Actual Ratio	18.03%	18.14%
Common Equity Tier 1 Capital Ratio, Actual Ratio	18.03%	18.14%
Tier 1 Capital to Total Assets, Actual Ratio	13.62%	13.66%
Total Capital to Risk-Weighted Assets, For Capital Adequacy Amount	$ 63,643	$ 61,261
Tier 1 Capital to Risk-Weighted Assets, For Capital Adequacy Amount	47,732	45,946
Common Equity Tier 1 Capital Ratio, For Capital Adequacy Amount	35,799	34,459
Tier 1 Capital to Total Assets, For Capital Adequacy Amount	$ 42,132	$ 40,652
Total Capital to Risk-Weighted Assets, For Capital Adequacy Ratio	8.00%	8.00%
Tier 1 Capital to Risk-Weighted Assets, For Capital Adequacy Ratio	6.00%	6.00%
Common Equity Tier 1 Capital Ratio, For Capital Adequacy Ratio	4.50%	4.50%
Tier 1 Capital to Total Assets, For Capital Adequacy Ratio	4.00%	4.00%
Total Capital to Risk-Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 79,554	$ 76,577
Tier 1 Capital to Risk-Weighted Assets, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	63,643	61,261
Common Equity Tier 1 Capital Ratio, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	51,710	49,775
Tier 1 Capital to Total Assets, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 52,665	$ 50,815
Total Capital to Risk-Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	10.00%	10.00%
Tier 1 Capital to Risk-Weighted Assets, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	8.00%	8.00%
Common Equity Tier 1 Capital Ratio, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.50%	6.50%
Tier 1 Capital to Total Assets, For Capital Adequacy Ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	5.00%	5.00%

Common equity tier one capital required for capital adequacy to risk weighted assets.

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Common equity tier one capital required to be well capitalized to average assets.

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The amount of total capital as defined in the regulations.

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The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Percentage of Common Equity Tier One Risk-based Capital to total risk-weighted assets, as defined by regulatory framework.

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Amount of Common Equity Tier 1 Risk-based Capital required to be categorized as adequately capitalized under regulatory framework for prompt corrective action.

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Amount of Common Equity Tier 1 Risk-based Capital required to be categorized as well-capitalized under regulatory framework for prompt corrective action.

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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.

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Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.

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The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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Tier 1 Risk Based Capital as defined in the regulations.

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