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LOANS, Troubled Debt Restructuring (TDR) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 USD ($) Loan | Sep. 30, 2016 USD ($) Loan | Sep. 30, 2017 USD ($) Loan | Sep. 30, 2016 USD ($) Loan | Dec. 31, 2016 USD ($) Loan
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 217 |  | 217 |  | 214
TDRs, amount | $ 6,238 |  | $ 6,238 |  | $ 5,530
Loans modified in TDR during the year, number | Loan | 19 | 11 | 48 | 41 |
Loans modified in TDR during the year, amount | $ 781 | $ 295 | $ 1,890 | $ 1,307 |
Maximum [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Threshold balance of TDR loans collectively included in general loan loss allocation and qualitative review | $ 500 |  | $ 500 |  |
Nonaccrual [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 65 |  | 65 |  | 56
TDRs, amount | $ 2,807 |  | $ 2,807 |  | $ 1,832
Accruing [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 152 |  | 152 |  | 158
TDRs, amount | $ 3,431 |  | $ 3,431 |  | $ 3,698
Residential Portfolio Segment [Member] | Consumer Mortgage [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 92 |  | 92 |  | 81
TDRs, amount | $ 4,071 |  | $ 4,071 |  | $ 3,476
Loans modified in TDR during the year, number | Loan | 8 | 2 | 15 | 9 |
Loans modified in TDR during the year, amount | $ 540 | $ 206 | $ 1,040 | $ 787 |
Residential Portfolio Segment [Member] | Consumer Mortgage [Member] | Nonaccrual [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 45 |  | 45 |  | 36
TDRs, amount | $ 2,131 |  | $ 2,131 |  | $ 1,520
Residential Portfolio Segment [Member] | Consumer Mortgage [Member] | Accruing [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 47 |  | 47 |  | 45
TDRs, amount | $ 1,940 |  | $ 1,940 |  | $ 1,956
Commercial Portfolio Segment [Member] | Minimum [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Threshold balance of loans individually evaluated for impairment | $ 500 |  | $ 500 |  |
Commercial Portfolio Segment [Member] | Business Lending [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 14 |  | 14 |  | 11
TDRs, amount | $ 836 |  | $ 836 |  | $ 781
Loans modified in TDR during the year, number | Loan | 1 | 0 | 4 | 1 |
Loans modified in TDR during the year, amount | $ 51 | $ 0 | $ 414 | $ 29 |
Commercial Portfolio Segment [Member] | Business Lending [Member] | Nonaccrual [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 9 |  | 9 |  | 6
TDRs, amount | $ 453 |  | $ 453 |  | $ 91
Commercial Portfolio Segment [Member] | Business Lending [Member] | Accruing [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 5 |  | 5 |  | 5
TDRs, amount | $ 383 |  | $ 383 |  | $ 690
Consumer Portfolio Segment [Member] | Consumer Indirect [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 70 |  | 70 |  | 78
TDRs, amount | $ 839 |  | $ 839 |  | $ 771
Loans modified in TDR during the year, number | Loan | 8 | 9 | 22 | 27 |
Loans modified in TDR during the year, amount | $ 181 | $ 89 | $ 323 | $ 392 |
Consumer Portfolio Segment [Member] | Consumer Indirect [Member] | Nonaccrual [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 0 |  | 0 |  | 0
TDRs, amount | $ 0 |  | $ 0 |  | $ 0
Consumer Portfolio Segment [Member] | Consumer Indirect [Member] | Accruing [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 70 |  | 70 |  | 78
TDRs, amount | $ 839 |  | $ 839 |  | $ 771
Consumer Portfolio Segment [Member] | Consumer Direct [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 23 |  | 23 |  | 23
TDRs, amount | $ 62 |  | $ 62 |  | $ 65
Loans modified in TDR during the year, number | Loan | 1 | 0 | 4 | 1 |
Loans modified in TDR during the year, amount | $ 1 | $ 0 | $ 7 | $ 51 |
Consumer Portfolio Segment [Member] | Consumer Direct [Member] | Nonaccrual [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 0 |  | 0 |  | 0
TDRs, amount | $ 0 |  | $ 0 |  | $ 0
Consumer Portfolio Segment [Member] | Consumer Direct [Member] | Accruing [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 23 |  | 23 |  | 23
TDRs, amount | $ 62 |  | $ 62 |  | $ 65
Consumer Portfolio Segment [Member] | Home Equity [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 18 |  | 18 |  | 21
TDRs, amount | $ 430 |  | $ 430 |  | $ 437
Loans modified in TDR during the year, number | Loan | 1 | 0 | 3 | 3 |
Loans modified in TDR during the year, amount | $ 8 | $ 0 | $ 106 | $ 48 |
Consumer Portfolio Segment [Member] | Home Equity [Member] | Nonaccrual [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 11 |  | 11 |  | 14
TDRs, amount | $ 223 |  | $ 223 |  | $ 221
Consumer Portfolio Segment [Member] | Home Equity [Member] | Accruing [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
TDRs, number | Loan | 7 |  | 7 |  | 7
TDRs, amount | $ 207 |  | $ 207 |  | $ 216

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