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Loans - Troubled Debt Restructurings That Are Not Performing (Details) $ in Thousands | 6 Months Ended | 12 Months Ended
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Jun. 30, 2021 USD ($) loan contract | Jun. 30, 2020 loan | Dec. 31, 2020 USD ($) contract
Number of contracts | loan |  | 0 |
Nonperforming Financial Instruments [Member] |  |  |
Number of contracts | contract | 2 |  | 12
Recorded investment, not performing | $ 596 |  | $ 2,201
Taxi Medallion Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |
Number of contracts | contract | 0 |  | 11
Recorded investment, not performing | $ 0 |  | $ 1,922
Commercial Business and Other Portfolio Segment [Member] |  |  |
Number of contracts | loan | 1 |  |
Recorded investment, not performing | $ 300 |  |
Commercial Business and Other Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |
Number of contracts | contract | 2 |  | 1
Recorded investment, not performing | $ 596 |  | $ 279

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- Definition Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
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