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Loans and Allowance for Loan Losses - Troubled Debt Restructurings That Are Performing (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) item | Mar. 31, 2019 item | Dec. 31, 2019 USD ($)
Number | item | 0 | 0 |
Performing Financial Instruments [Member] |  |  |
Number | 23 |  | 24
Recorded investment | $ 6,346 |  | $ 6,494
Multi-Family Residential [Member] | Performing Financial Instruments [Member] |  |  |
Number | 7 |  | 7
Recorded investment | $ 1,868 |  | $ 1,873
One-To-Four Family - Mixed Used Property [Member] | Performing Financial Instruments [Member] |  |  |
Number | 4 |  | 4
Recorded investment | $ 1,483 |  | $ 1,481
One-To-Four Family - Residential [Member] | Performing Financial Instruments [Member] |  |  |
Number | 3 |  | 3
Recorded investment | $ 525 |  | $ 531
Taxi Medallion Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |  |
Number | 6 |  | 7
Recorded investment | $ 1,520 |  | $ 1,668
Commercial Business and Other [Member] | Performing Financial Instruments [Member] |  |  |
Number | 3 |  | 3
Recorded investment | $ 950 |  | $ 941

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
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