LOANS AND ALLOWANCE FOR LOAN LOSSES - RECEIVABLES PAST DUE (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	$ 12,774	$ 12,232
Loans Past Due 90 Days or More and Still Accruing	2,260	18
Aging of the recorded investment in loans past due [Abstract]
Past Due	17,830	18,479
Loans Not Past Due	1,169,913	1,150,929
Total ending loans balance	1,189,821	1,171,503
30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	9,169	9,793
60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	1,188	1,012
90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	7,473	7,674
Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	2,078	2,095
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	2,078	2,095
Commercial and Agricultural [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	191,038	193,700
Commercial and Agricultural [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	0	0
Commercial and Agricultural [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	69	13
Loans Past Due 90 Days or More and Still Accruing	5	3
Aging of the recorded investment in loans past due [Abstract]
Past Due	121	413
Loans Not Past Due	190,074	192,248
Total ending loans balance	190,195	192,661
Commercial and Agricultural [Member] | Commercial and Industrial [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	46	398
Commercial and Agricultural [Member] | Commercial and Industrial [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	1	3
Commercial and Agricultural [Member] | Commercial and Industrial [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	74	12
Commercial and Agricultural [Member] | Commercial and Industrial [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	0	0
Commercial and Agricultural [Member] | Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Loans Past Due 90 Days or More and Still Accruing	0	0
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Loans Not Past Due	843	1,039
Total ending loans balance	843	1,039
Commercial and Agricultural [Member] | Agricultural [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Commercial and Agricultural [Member] | Agricultural [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Commercial and Agricultural [Member] | Agricultural [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Commercial and Agricultural [Member] | Agricultural [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	0	0
Commercial Mortgages [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	536,355	507,700
Commercial Mortgages [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	1,804	1,825
Commercial Mortgages [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	62	63
Loans Past Due 90 Days or More and Still Accruing	0	0
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Loans Not Past Due	40,803	41,231
Total ending loans balance	40,803	41,231
Commercial Mortgages [Member] | Construction [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Commercial Mortgages [Member] | Construction [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Commercial Mortgages [Member] | Construction [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Commercial Mortgages [Member] | Construction [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	0	0
Commercial Mortgages [Member] | Commercial Mortgages Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	6,886	7,203
Loans Past Due 90 Days or More and Still Accruing	2,242	0
Aging of the recorded investment in loans past due [Abstract]
Past Due	11,591	9,635
Loans Not Past Due	482,157	455,009
Total ending loans balance	495,552	466,469
Commercial Mortgages [Member] | Commercial Mortgages Other [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	5,902	4,197
Commercial Mortgages [Member] | Commercial Mortgages Other [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	199	199
Commercial Mortgages [Member] | Commercial Mortgages Other [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	5,490	5,239
Commercial Mortgages [Member] | Commercial Mortgages Other [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	1,804	1,825
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	1,804	1,825
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	4,159	3,610
Loans Past Due 90 Days or More and Still Accruing	0	0
Aging of the recorded investment in loans past due [Abstract]
Past Due	3,978	5,411
Loans Not Past Due	192,979	190,555
Total ending loans balance	197,231	196,236
Residential Mortgages [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	1,908	2,983
Residential Mortgages [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	783	725
Residential Mortgages [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	1,287	1,703
Residential Mortgages [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	274	270
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	274	270
Consumer Loans [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	265,197	273,867
Consumer Loans [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	0	0
Consumer Loans [Member] | Credit Cards [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Loans Past Due 90 Days or More and Still Accruing	13	15
Aging of the recorded investment in loans past due [Abstract]
Past Due	64	49
Loans Not Past Due	1,229	1,434
Total ending loans balance	1,293	1,483
Consumer Loans [Member] | Credit Cards [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	39	30
Consumer Loans [Member] | Credit Cards [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	12	4
Consumer Loans [Member] | Credit Cards [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	13	15
Consumer Loans [Member] | Credit Cards [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	0	0
Consumer Loans [Member] | Home Equity Lines and Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	1,156	758
Loans Past Due 90 Days or More and Still Accruing	0	0
Aging of the recorded investment in loans past due [Abstract]
Past Due	603	549
Loans Not Past Due	98,684	101,427
Total ending loans balance	99,287	101,976
Consumer Loans [Member] | Home Equity Lines and Loans [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	371	233
Consumer Loans [Member] | Home Equity Lines and Loans [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	77
Consumer Loans [Member] | Home Equity Lines and Loans [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	232	239
Consumer Loans [Member] | Home Equity Lines and Loans [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	0	0
Consumer Loans [Member] | Indirect Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	390	542
Loans Past Due 90 Days or More and Still Accruing	0	0
Aging of the recorded investment in loans past due [Abstract]
Past Due	1,368	2,195
Loans Not Past Due	145,565	149,531
Total ending loans balance	146,933	151,726
Consumer Loans [Member] | Indirect Consumer Loans [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	859	1,744
Consumer Loans [Member] | Indirect Consumer Loans [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	162	4
Consumer Loans [Member] | Indirect Consumer Loans [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	347	447
Consumer Loans [Member] | Indirect Consumer Loans [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	0	0
Consumer Loans [Member] | Direct Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	52	43
Loans Past Due 90 Days or More and Still Accruing	0	0
Aging of the recorded investment in loans past due [Abstract]
Past Due	105	227
Loans Not Past Due	17,579	18,455
Total ending loans balance	17,684	18,682
Consumer Loans [Member] | Direct Consumer Loans [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	44	208
Consumer Loans [Member] | Direct Consumer Loans [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	31	0
Consumer Loans [Member] | Direct Consumer Loans [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	30	19
Consumer Loans [Member] | Direct Consumer Loans [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	$ 0	$ 0