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LOANS AND ALLOWANCE FOR LOAN LOSSES - Receivables Past Due (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | $ 17,324 | $ 12,043
Loans Past Due 90 Days or More and Still Accruing | 29 | 13
Past Due | 14,076 | 17,873
Loans Not Past Due | 1,300,714 | 1,184,191
Loans | 1,315,582 | 1,203,482
30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 7,639 | 4,969
60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 2,605 | 6,383
90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 3,832 | 6,521
Commercial, and Agricultural |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans | 199,576 | 177,027
Commercial mortgages: |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans | 646,174 | 570,156
Residential Mortgages |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 3,160 | 4,201
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Past Due | 3,812 | 4,919
Loans Not Past Due | 191,125 | 193,951
Loans | 194,937 | 198,965
Residential Mortgages | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,399 | 2,100
Residential Mortgages | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 939 | 436
Residential Mortgages | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,474 | 2,383
Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans | 274,895 | 257,334
Construction | Commercial mortgages: |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 135 | 19
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Past Due | 0 | 1,177
Loans Not Past Due | 45,688 | 45,333
Loans | 45,688 | 46,510
Construction | Commercial mortgages: | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Construction | Commercial mortgages: | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 1,177
Construction | Commercial mortgages: | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial mortgages | Commercial mortgages: |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 6,520 | 5,454
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Past Due | 3,262 | 7,524
Loans Not Past Due | 596,432 | 514,799
Loans | 600,486 | 523,646
Commercial mortgages | Commercial mortgages: | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 2,399 | 652
Commercial mortgages | Commercial mortgages: | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 115 | 4,460
Commercial mortgages | Commercial mortgages: | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 748 | 2,412
Credit cards | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 0
Loans Past Due 90 Days or More and Still Accruing | 24 | 11
Past Due | 50 | 23
Loans Not Past Due | 1,466 | 1,453
Loans | 1,516 | 1,476
Credit cards | Consumer Loans | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 17 | 3
Credit cards | Consumer Loans | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 9 | 9
Credit cards | Consumer Loans | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 24 | 11
Home equity lines and loans | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 1,310 | 1,670
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Past Due | 1,279 | 1,376
Loans Not Past Due | 99,599 | 97,477
Loans | 100,878 | 98,853
Home equity lines and loans | Consumer Loans | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 265 | 227
Home equity lines and loans | Consumer Loans | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 31 | 0
Home equity lines and loans | Consumer Loans | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 983 | 1,149
Indirect Consumer Loans | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 935 | 654
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Past Due | 2,887 | 2,602
Loans Not Past Due | 150,645 | 137,391
Loans | 153,532 | 139,993
Indirect Consumer Loans | Consumer Loans | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,822 | 1,773
Indirect Consumer Loans | Consumer Loans | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 484 | 287
Indirect Consumer Loans | Consumer Loans | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 581 | 542
Direct consumer loans | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 14 | 45
Loans Past Due 90 Days or More and Still Accruing | 0 | 0
Past Due | 78 | 83
Loans Not Past Due | 18,891 | 16,929
Loans | 18,969 | 17,012
Direct consumer loans | Consumer Loans | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 48 | 54
Direct consumer loans | Consumer Loans | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 28 | 7
Direct consumer loans | Consumer Loans | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 2 | 22
Loans acquired with deteriorated credit quality |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 792 | 1,418
Loans | 792 | 1,418
Loans acquired with deteriorated credit quality | Commercial, and Agricultural |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans | 0 | 0
Loans acquired with deteriorated credit quality | Commercial mortgages: |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans | 792 | 1,323
Loans acquired with deteriorated credit quality | Residential Mortgages |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 95
Loans | 0 | 95
Loans acquired with deteriorated credit quality | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans | 0 | 0
Loans acquired with deteriorated credit quality | Construction | Commercial mortgages: |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 0
Loans | 0 | 0
Loans acquired with deteriorated credit quality | Commercial mortgages | Commercial mortgages: |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 792 | 1,323
Loans | 792 | 1,323
Loans acquired with deteriorated credit quality | Credit cards | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 0
Loans | 0 | 0
Loans acquired with deteriorated credit quality | Home equity lines and loans | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 0
Loans | 0 | 0
Loans acquired with deteriorated credit quality | Indirect Consumer Loans | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 0
Loans | 0 | 0
Loans acquired with deteriorated credit quality | Direct consumer loans | Consumer Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 0
Loans | 0 | 0
Commercial and industrial | Commercial, and Agricultural |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 5,250 | 0
Loans Past Due 90 Days or More and Still Accruing | 5 | 2
Past Due | 2,708 | 169
Loans Not Past Due | 196,322 | 176,497
Loans | 199,030 | 176,666
Commercial and industrial | Commercial, and Agricultural | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,689 | 160
Commercial and industrial | Commercial, and Agricultural | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 999 | 7
Commercial and industrial | Commercial, and Agricultural | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 20 | 2
Commercial and industrial | Loans acquired with deteriorated credit quality | Commercial, and Agricultural |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 0
Loans | 0 | 0
Agricultural | Commercial, and Agricultural |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Loans Not Past Due | 546 | 361
Loans | 546 | 361
Agricultural | Commercial, and Agricultural | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Agricultural | Commercial, and Agricultural | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Agricultural | Commercial, and Agricultural | 90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Agricultural | Loans acquired with deteriorated credit quality | Commercial, and Agricultural |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 0
Loans | $ 0 | $ 0

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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Definition Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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