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LOANS - Modifications that Subsequently Defaulted (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 contract | Dec. 31, 2015 USD ($) contract | Dec. 31, 2014 USD ($) contract
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Modifications that subsequently defaulted, number of contracts (contract) | contract | 0 | 8 | 2
Modifications that subsequently defaulted, recorded investment | $ |  | $ 7,121 | $ 101
Commercial loans | Single and multi-family |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Modifications that subsequently defaulted, number of contracts (contract) | contract |  | 1 |
Modifications that subsequently defaulted, recorded investment | $ |  | $ 0 |
Commercial loans | Other |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Modifications that subsequently defaulted, number of contracts (contract) | contract |  | 1 |
Modifications that subsequently defaulted, recorded investment | $ |  | $ 373 |
Commercial and industrial | Other |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Modifications that subsequently defaulted, number of contracts (contract) | contract |  | 4 | 2
Modifications that subsequently defaulted, recorded investment | $ |  | $ 6,579 | $ 101
Residential | 1-4 family |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Modifications that subsequently defaulted, number of contracts (contract) | contract |  | 2 |
Modifications that subsequently defaulted, recorded investment | $ |  | $ 169 |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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