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LOANS - Troubled Debt Restructurings (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 USD ($) loan | Sep. 30, 2020 USD ($) loan | Sep. 30, 2021 USD ($) loan | Sep. 30, 2020 USD ($) loan
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan | 1 | 5 | 4 | 7
Troubled debt restructurings, post-modification recorded investment | $ | $ 70 | $ 7,001 | $ 222 | $ 7,271
Commercial | Real estate loan | Principal and interest payment deferral non-COVID related |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan | 0 | 2 | 0 | 2
Troubled debt restructurings, post-modification recorded investment | $ | $ 0 | $ 4,831 | $ 0 | $ 4,831
Commercial | Real estate loan | Interest only payments for a nine-month period |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan |  |  | 0 | 1
Troubled debt restructurings, post-modification recorded investment | $ |  |  | $ 0 | $ 240
Commercial | Multi-family (5 or more) residential | Principal and interest payment deferral non-COVID related |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan | 0 | 3 | 0 | 3
Troubled debt restructurings, post-modification recorded investment | $ | $ 0 | $ 2,170 | $ 0 | $ 2,170
Residential mortgage | Real estate loan | first liens | Reduced monthly payments for a fifteen-month period |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan |  |  | 1 | 0
Troubled debt restructurings, post-modification recorded investment | $ |  |  | $ 116 | $ 0
Residential mortgage | Real estate loan | first liens | Reduced monthly payments and extended maturity date |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan |  |  | 1 | 0
Troubled debt restructurings, post-modification recorded investment | $ |  |  | $ 12 | $ 0
Residential mortgage | Real estate loan | junior liens | New loan at lower than risk-adjusted market rate to borrower from whom short sale of other collateral was accepted |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan |  |  | 0 | 1
Troubled debt restructurings, post-modification recorded investment | $ |  |  | $ 0 | $ 30
Residential mortgage | Home equity lines of credit | Reduced monthly payments and extended maturity date |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan |  |  | 1 | 0
Troubled debt restructurings, post-modification recorded investment | $ |  |  | $ 24 | $ 0
Residential mortgage | Home equity lines of credit | Reduced monthly payments for eighteen-month period |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan | 1 | 0 | 1 | 0
Troubled debt restructurings, post-modification recorded investment | $ | $ 70 | $ 0 | $ 70 | $ 0

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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=121611835&loc=SL6953676-111524 + Details
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