SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) Segment	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Total Assets	$ 1,496,193				$ 1,244,693				$ 1,496,193	$ 1,244,693
Net Income	3,407	$ 3,164	$ 2,624	$ 2,979	2,852	$ 3,325	$ 3,127	$ 3,142	12,174	12,446	$ 13,150
Securities [Abstract]
Securities classified as held to maturity	0				$ 0				$ 0	$ 0
Financing Receivable, Recorded Investment, Past Due [Line Items]
Period of non-payment after which a loan is moved to nonaccrual status									90 days
Operating Segments [Abstract]
Number of reportable segments | Segment									1
Minimum [Member]
Goodwill and Other Intangible Assets [Abstract]
Estimated useful life of acquired intangible assets									8 years
Maximum [Member]
Goodwill and Other Intangible Assets [Abstract]
Estimated useful life of acquired intangible assets									10 years
Premises [Member] | Minimum [Member]
Premises and Equipment [Abstract]
Useful Life									7 years
Premises [Member] | Maximum [Member]
Premises and Equipment [Abstract]
Useful Life									40 years
Equipment [Member] | Minimum [Member]
Premises and Equipment [Abstract]
Useful Life									3 years
Equipment [Member] | Maximum [Member]
Premises and Equipment [Abstract]
Useful Life									15 years
Citizens Deposit Bank & Trust [Member] | Vanceburg, Kentucky [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Year Acquired									1991
Total Assets	414,485								$ 414,485
Net Income									$ 4,547
Premier Bank, Inc. [Member] | Huntington, West Virginia [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Year Acquired									1998
Total Assets	1,075,790								$ 1,075,790
Net Income									9,535
Parent and Intercompany Eliminations [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Total Assets	$ 5,918								5,918
Net Income									$ (1,908)
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Delinquent period after which interest income is discontinued on mortgage and loans									90 days
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due period after which consumer loans are charged off									120 days