ACQUISITIONS (Schedule of Effect of Amortization and Accretion Related to Acquisition) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Combinations [Abstract]
Loans	$ 6,784	$ 5,218	$ 4,355
Core deposit intangibles	(5,603)	(6,930)	(8,445)
Borrowings	170	458	424
Time deposits	0	0	1,843
Other amortizable intangibles	(485)	(280)	0
Net impact to income before taxes	$ 866	$ (1,534)	$ (1,823)