LOANS AND ALLOWANCE FOR LOAN LOSSES (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	$ 1,288,813	$ 1,200,290
Interest receivable on loans	3,448	3,192
Total recorded investment in loans	1,292,261	1,203,482
Commercial and agricultural:
Composition of loan portfolio [Abstract]
Total recorded investment in loans	189,303	177,027
Commercial mortgages:
Composition of loan portfolio [Abstract]
Total recorded investment in loans	639,501	570,156
Commercial mortgages: \| Construction
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	57,704	46,387
Total recorded investment in loans	57,861	46,510
Commercial mortgages: \| Commercial mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	580,061	522,269
Total recorded investment in loans	581,640	523,646
Residential mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	197,210	198,493
Total recorded investment in loans	197,701	198,965
Consumer loans:
Composition of loan portfolio [Abstract]
Total recorded investment in loans	265,756	257,334
Consumer loans: \| Credit cards
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	1,444	1,476
Total recorded investment in loans	1,444	1,476
Consumer loans: \| Home equity lines and loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	98,492	98,590
Total recorded investment in loans	98,763	98,853
Consumer loans: \| Indirect consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	147,426	139,572
Total recorded investment in loans	147,790	139,993
Consumer loans: \| Direct consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	17,687	16,942
Total recorded investment in loans	17,759	17,012
Commercial and industrial \| Commercial and agricultural:
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	188,341	176,201
Total recorded investment in loans	188,853	176,666
Agricultural \| Commercial and agricultural:
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	448	360
Total recorded investment in loans	$ 450	$ 361

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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 210.5-02.8)
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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