PENSION PLANS (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 plan	Sep. 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	$ 383,000	$ 459,000	$ 1,165,000	$ 1,371,000
Interest costs	378,000	363,000	1,151,000	1,085,000
Amortization of actuarial loss	18,000	16,000	56,000	47,000
Net pension period cost	779,000	838,000	2,372,000	2,503,000
Expected net pension cost for next fiscal year			3,200,000
Cash funding for benefits paid	100,000		300,000
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 [Member]
Defined Benefit Plan Disclosure
Period of salary paid to Company's French employees as termination benefits at retirement, range (in months)			5