OTHER ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Cash surrender value of the COLI	$ 10,900	$ 8,500
Increase (decrease) in cash surrender value	500	(100)	$ 200
Proceeds from sale of marketable securities	2,164	2,820	0
Investments held in Rabbi Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Cost of investments	1,000	2,900
Fair value of investments	1,700	3,600
Unrealized gain on investments	700	700
Proceeds from sale of marketable securities	2,200	2,800
Supplemental Employee Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	16,900	15,576	$ 14,205
Value of assets earmarked for SERP use but not restricted to that use	12,700	12,200
Proceeds from sale of marketable securities	$ 2,200	$ 2,800