| Document and Entity Information - USD ($) | 12 Months Ended | |
| Dec. 31, 2020 | Mar. 25, 2021 | |
| Cover [Abstract] | ||
| Document Type | 10-K/A | |
| Amendment Flag | true | |
| Amendment Description | This Amendment No. 1 (“Amendment No. 1”) to the Annual Report on Form 10-K of PDL Community Bancorp (the “Company” “we,” “our” or “us”) for the fiscal year ended December 31, 2020, as filed with the Securities and Exchange Commission (“SEC”) on March 29, 2021 (the “2020 Annual Report”), is being filed to include in the 2020 Annual Report an updated listing of the Company’s subsidiaries as provided by Exhibit 21.1.Pursuant to Rule 12b-15, the Company is including Item 15 of Part IV with this Amendment No. 1, solely to file the updated Exhibit 21.1 and the certifications required under Section 302 of the Sarbanes-Oxley Act of 2002. Because no financial statements have been included in this Amendment No. 1 and this Amendment No. 1 does not contain or amend any disclosure with respect to Items 307 or 308 of Regulation S-K, paragraphs 3, 4 and 5 of the certification have been omitted. We are not including the certifications under Section 906 of the Sarbanes–Oxley Act of 2002 as no financial statements are being filed with this Amendment No. 1.This Amendment No. 1 does not affect any other portion of the 2020 Annual Report. Additionally, except as specifically referenced herein, this Amendment No. 1 does not reflect any event occurring after March 29, 2021, the filing date of the 2020 Annual Report. | |
| Document Period End Date | Dec. 31, 2020 | |
| Document Fiscal Year Focus | 2020 | |
| Document Fiscal Period Focus | FY | |
| Trading Symbol | PDLB | |
| Entity Registrant Name | PDL Community Bancorp | |
| Entity Central Index Key | 0001703489 | |
| Current Fiscal Year End Date | --12-31 | |
| Entity Filer Category | Non-accelerated Filer | |
| Title of 12(b) Security | Common stock, par value $0.01 per share | |
| Security Exchange Name | NASDAQ | |
| Entity Current Reporting Status | Yes | |
| Entity Interactive Data Current | Yes | |
| Entity Small Business | true | |
| Entity Emerging Growth Company | true | |
| Entity Ex Transition Period | false | |
| Entity Shell Company | false | |
| Entity Public Float | $ 70,826,239 | |
| Entity Common Stock, Shares Outstanding | 17,024,207 | |
| Entity File Number | 001-38224 | |
| Entity Tax Identification Number | 82-2857928 | |
| Entity Address, Postal Zip Code | 10462 | |
| Entity Address, Address Line One | 2244 Westchester Avenue | |
| Entity Address, City or Town | Bronx | |
| Entity Address, State or Province | NY | |
| City Area Code | 718 | |
| Local Phone Number | 931-9000 | |
| Document Annual Report | true | |
| Document Transition Report | false | |
| Entity Voluntary Filers | No | |
| Entity Well-known Seasoned Issuer | No | |
| Documents Incorporated by Reference | Portions of the Registrant’s Definitive Proxy Statement relating to the Annual Meeting of Stockholders, schedule to be held on May 25, 2021, are incorporated into Part III hereof. |
