EMPLOYEE BENEFIT PLANS (Details 1) (Pension Plan [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Multiemployer Plans [Line Items]
Cash payment	$ 1,320	$ 2,603	$ 234
2013-2014 [Member]
Multiemployer Plans [Line Items]
Cash payment	1,320
2012-2013 [Member]
Multiemployer Plans [Line Items]
Cash payment		1,762
2011-2012 [Member]
Multiemployer Plans [Line Items]
Cash payment		$ 841	$ 234