INTANGIBLE ASSETS (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 30,000,000		$ 30,000,000
Intangible Assets, Gross (Excluding Goodwill), Total	26,900,000		26,900,000
Amortization of Intangible Assets			1,792,000	$ 1,793,000
Amortization of Regulatory Asset			3,100,000
Patents And Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	12,300,000		12,300,000
Intangible Assets, Gross (Excluding Goodwill), Total	12,378,000		12,378,000		$ 12,378,000
Amortization of Intangible Assets	200,000	$ 200,000	332,000	300,000
Amortization Of Intangible Assets Accumulated Amortization			$ 100,000
Patents And Licenses [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			18 years 6 months
Patents And Licenses [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			20 years
Software Development [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	3,000,000		$ 3,000,000
Intangible Assets, Gross (Excluding Goodwill), Total	17,622,000		17,622,000		$ 16,455,000
Amortization of Intangible Assets	$ 800,000	$ 800,000	$ 1,460,000	$ 1,500,000