PENSION PLANS (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 plan	Jun. 30, 2013
Defined Benefit Plan Disclosure
Number of types of retirement plans			2
Aggregate net pension expense relating to the two plan types
Service costs	$ 393,000	$ 451,000	$ 782,000	$ 912,000
Interest costs	388,000	357,000	773,000	722,000
Amortization of actuarial loss	19,000	15,000	38,000	31,000
Net pension period cost	800,000	823,000	1,593,000	1,665,000
Expected net pension cost for next fiscal year			3,200,000
Cash funding for benefits paid	100,000		200,000
Expected cash funding for benefits to be paid next year			$ 500,000
Minimum [Member]
Defined Benefit Plan Disclosure
Period of salary paid to Company's French employees as termination benefits at retirement, range (in months)			1
Maximum
Defined Benefit Plan Disclosure
Period of salary paid to Company's French employees as termination benefits at retirement, range (in months)			5