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LOANS - Troubled Debt Restructurings (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 USD ($) contract | Mar. 31, 2017 contract
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Modifications that subsequently defaulted, number of contracts | 0 | 2
Total commercial loans | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Modifications that subsequently defaulted, number of contracts | 1 |
Modifications that subsequently defaulted, recorded investment | $ | $ 113 |
Commercial and industrial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Modifications that subsequently defaulted, number of contracts | 1 |
Modifications that subsequently defaulted, recorded investment | $ | $ 101 |

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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=84173941&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=84173941&loc=SL6953682-111524 + Details
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