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LOANS, Troubled Debt Restructuring (TDR) (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 USD ($) Loan | Mar. 31, 2017 USD ($) Loan | Dec. 31, 2017 USD ($) Loan
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 211 |  | 226
TDRs, amount | $ 5,566 |  | $ 6,135
Loans modified in TDR during the year, number | Loan | 7 | 21 |
Loans modified in TDR during the year, amount | $ 136 | $ 721 |
Maximum [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Threshold balance of TDR loans collectively included in general loan loss allocation and qualitative review | $ 500 |  |
Nonaccrual [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 67 |  | 72
TDRs, amount | $ 2,522 |  | $ 2,728
Accruing [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 144 |  | 154
TDRs, amount | $ 3,044 |  | $ 3,407
Commercial Portfolio Segment [Member] | Minimum [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Threshold balance of loans individually evaluated for impairment | $ 500 |  |
Commercial Portfolio Segment [Member] | Business Lending [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 11 |  | 15
TDRs, amount | $ 592 |  | $ 719
Loans modified in TDR during the year, number | Loan | 1 | 0 |
Loans modified in TDR during the year, amount | $ 93 | $ 0 |
Commercial Portfolio Segment [Member] | Business Lending [Member] | Nonaccrual [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 8 |  | 8
TDRs, amount | $ 312 |  | $ 218
Commercial Portfolio Segment [Member] | Business Lending [Member] | Accruing [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 3 |  | 7
TDRs, amount | $ 280 |  | $ 501
Residential Portfolio Segment [Member] | Consumer Mortgage [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 91 |  | 95
TDRs, amount | $ 3,627 |  | $ 4,015
Loans modified in TDR during the year, number | Loan | 0 | 7 |
Loans modified in TDR during the year, amount | $ 0 | $ 502 |
Residential Portfolio Segment [Member] | Consumer Mortgage [Member] | Nonaccrual [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 48 |  | 51
TDRs, amount | $ 1,976 |  | $ 2,265
Residential Portfolio Segment [Member] | Consumer Mortgage [Member] | Accruing [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 43 |  | 44
TDRs, amount | $ 1,651 |  | $ 1,750
Consumer Portfolio Segment [Member] | Consumer Indirect [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 68 |  | 71
TDRs, amount | $ 847 |  | $ 883
Loans modified in TDR during the year, number | Loan | 4 | 8 |
Loans modified in TDR during the year, amount | $ 41 | $ 106 |
Consumer Portfolio Segment [Member] | Consumer Indirect [Member] | Nonaccrual [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 0 |  | 0
TDRs, amount | $ 0 |  | $ 0
Consumer Portfolio Segment [Member] | Consumer Indirect [Member] | Accruing [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 68 |  | 71
TDRs, amount | $ 847 |  | $ 883
Consumer Portfolio Segment [Member] | Consumer Direct [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 23 |  | 25
TDRs, amount | $ 65 |  | $ 69
Loans modified in TDR during the year, number | Loan | 2 | 4 |
Loans modified in TDR during the year, amount | $ 2 | $ 15 |
Consumer Portfolio Segment [Member] | Consumer Direct [Member] | Nonaccrual [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 0 |  | 0
TDRs, amount | $ 0 |  | $ 0
Consumer Portfolio Segment [Member] | Consumer Direct [Member] | Accruing [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 23 |  | 25
TDRs, amount | $ 65 |  | $ 69
Consumer Portfolio Segment [Member] | Home Equity [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 18 |  | 20
TDRs, amount | $ 435 |  | $ 449
Loans modified in TDR during the year, number | Loan | 0 | 2 |
Loans modified in TDR during the year, amount | $ 0 | $ 98 |
Consumer Portfolio Segment [Member] | Home Equity [Member] | Nonaccrual [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 11 |  | 13
TDRs, amount | $ 234 |  | $ 245
Consumer Portfolio Segment [Member] | Home Equity [Member] | Accruing [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
TDRs, number | Loan | 7 |  | 7
TDRs, amount | $ 201 |  | $ 204

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