LOANS AND ALLOWANCE FOR LOAN LOSSES (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	$ 1,319,911	$ 1,311,824
Interest receivable on loans	3,618	3,758
Total recorded investment in loans	1,323,529	1,315,582
Commercial and agricultural:
Composition of loan portfolio [Abstract]
Total recorded investment in loans	201,037	199,576
Commercial mortgages:
Composition of loan portfolio [Abstract]
Total recorded investment in loans	649,413	646,174
Commercial mortgages: \| Construction
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	55,404	45,558
Total recorded investment in loans	55,560	45,688
Commercial mortgages: \| Commercial mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	592,195	598,772
Total recorded investment in loans	593,853	600,486
Residential mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	194,600	194,440
Total recorded investment in loans	195,096	194,937
Consumer loans:
Composition of loan portfolio [Abstract]
Total recorded investment in loans	277,983	274,895
Consumer loans: \| Credit cards
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	1,418	1,517
Total recorded investment in loans	1,418	1,516
Consumer loans: \| Home equity lines and loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	100,611	100,591
Total recorded investment in loans	100,902	100,878
Consumer loans: \| Indirect consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	156,958	153,060
Total recorded investment in loans	157,340	153,532
Consumer loans: \| Direct consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	18,249	18,879
Total recorded investment in loans	18,323	18,969
Commercial and industrial \| Commercial and agricultural:
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	199,947	198,463
Total recorded investment in loans	200,507	199,030
Agricultural \| Commercial and agricultural:
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	529	544
Total recorded investment in loans	$ 530	$ 546

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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