GOODWILL AND INTANGIBLE ASSETS (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite Lived and Indefinite Lived Intangible Assets and Liabilities by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	$ 29,172	$ 27,270
Finite-Lived Intangible Assets, Accumulated Amortization	10,056	8,281
Finite-Lived Intangible Assets, Net	19,116	18,989
Other intangible assets, net	30,217	32,063
Technical Know How [Member]
Finite Lived and Indefinite Lived Intangible Assets and Liabilities by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	12,984	12,409
Finite-Lived Intangible Assets, Accumulated Amortization	5,730	4,603
Customer Relationships [Member]
Finite Lived and Indefinite Lived Intangible Assets and Liabilities by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	9,047	8,425
Finite-Lived Intangible Assets, Accumulated Amortization	871	416
Land Rights [Member]
Finite Lived and Indefinite Lived Intangible Assets and Liabilities by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	2,796	2,865
Finite-Lived Intangible Assets, Accumulated Amortization	228	177
Patents, trade names, drawings, and other [Member]
Finite Lived and Indefinite Lived Intangible Assets and Liabilities by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	4,345	3,571
Finite-Lived Intangible Assets, Accumulated Amortization	3,227	3,085
Trade names [Member]
Finite Lived and Indefinite Lived Intangible Assets and Liabilities by Major Class [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 11,101	$ 13,074