LOANS AND ALLOWANCE FOR LOAN LOSSES - Receivabels Past Due (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($) loan	Dec. 31, 2015 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	$ 12,429	$ 12,232
Loans Past Due 90 Days or More and Still Accruing	$ 2,291	18
Number of Loans | loan	2
Aging of the recorded investment in loans past due [Abstract]
Past Due	$ 20,329	18,479
Loans Not Past Due	1,181,916	1,150,929
Total ending loans balance	1,204,120	1,171,503
30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	5,463	9,793
60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	6,517	1,012
90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	8,348	7,674
Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	1,875	2,095
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	$ 1,875	2,095
Commercial Mortgages Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of Loans | loan	2
Commercial and Agricultural [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	$ 191,531	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 Mortgages [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	553,154	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	1,782	1,825
Commercial Mortgages [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	61	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	1,104	0
Loans Not Past Due	39,933	41,231
Total ending loans balance	41,037	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	1,104	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	6,578	7,203
Loans Past Due 90 Days or More and Still Accruing	2,271	0
Aging of the recorded investment in loans past due [Abstract]
Past Due	11,452	9,635
Loans Not Past Due	498,883	455,009
Total ending loans balance	512,117	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	553	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	5,383	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	5,516	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	1,782	1,825
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	1,782	1,825
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	4,132	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	4,170	5,411
Loans Not Past Due	192,436	190,555
Total ending loans balance	196,699	196,236
Residential Mortgages [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	1,585	2,983
Residential Mortgages [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	557	725
Residential Mortgages [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	2,027	1,703
Residential Mortgages [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	93	270
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	93	270
Consumer Loans [Member]
Aging of the recorded investment in loans past due [Abstract]
Total ending loans balance	262,736	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	12	15
Aging of the recorded investment in loans past due [Abstract]
Past Due	30	49
Loans Not Past Due	1,308	1,434
Total ending loans balance	1,338	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	17	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	1	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	12	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	1,286	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	1,418	549
Loans Not Past Due	97,595	101,427
Total ending loans balance	99,013	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	697	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	239	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	482	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	277	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	1,708	2,195
Loans Not Past Due	142,639	149,531
Total ending loans balance	144,347	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	1,166	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	303	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	238	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	40	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	106	227
Loans Not Past Due	17,932	18,455
Total ending loans balance	18,038	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	65	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	32	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	10	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
Commercial and Industrial Sector [Member] | Commercial and Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	55	13
Loans Past Due 90 Days or More and Still Accruing	8	3
Aging of the recorded investment in loans past due [Abstract]
Past Due	341	413
Loans Not Past Due	190,035	192,248
Total ending loans balance	190,376	192,661
Commercial and Industrial Sector [Member] | Commercial and Agricultural [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	276	398
Commercial and Industrial Sector [Member] | Commercial and Agricultural [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	$ 2	3
Commercial and Industrial Sector [Member] | Commercial and Agricultural [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of Loans | loan	1
Aging of the recorded investment in loans past due [Abstract]
Past Due	$ 63	12
Commercial and Industrial Sector [Member] | Commercial and 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
Agricultural Sector [Member] | Commercial and 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	1,155	1,039
Total ending loans balance	1,155	1,039
Agricultural Sector [Member] | Commercial and Agricultural [Member] | 30 to 59 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Agricultural Sector [Member] | Commercial and Agricultural [Member] | 60 to 89 Days Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Agricultural Sector [Member] | Commercial and Agricultural [Member] | 90 Days or More Past Due [Member]
Aging of the recorded investment in loans past due [Abstract]
Past Due	0	0
Agricultural Sector [Member] | Commercial and 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