DISTRIBUTION AGREEMENTS (Narrative) (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 26, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2010
Distribution Agreements [Line Items]
Depreciation and amortization		$ 8,209	$ 8,284
Purchase of fixed assets and intangibles, shares			61,000,000
Purchase of fixed assets and intangibles			$ 5,969
Acquisition percentage in Jonway		51.00%
Value of common stock issued in relation to distribution agreement for CNG products		$ 6,167	1,900
Jonway Group [Member]
Distribution Agreements [Line Items]
Common stock issued in relation to distribution agreement for CNG products (in shares)	61,000,000
Value of common stock issued in relation to distribution agreement for CNG products	$ 6,000
Better World [Member]
Distribution Agreements [Line Items]
Purchase of fixed assets and intangibles, shares				6,000,000
Purchase of fixed assets and intangibles				$ 2,160
Goldenstone Worldwide [Member]
Distribution Agreements [Line Items]
Purchase of fixed assets and intangibles, shares				30,000,000
Purchase of fixed assets and intangibles				$ 14,400
CNG Products [Member]
Distribution Agreements [Line Items]
Impairment loss on Distribution rights		1,000	5,000
CNG Products [Member] | Jonway Group [Member]
Distribution Agreements [Line Items]
Impairment loss on Distribution rights		1,000	5,000
Distribution Agreements [Member]
Distribution Agreements [Line Items]
Depreciation and amortization		$ 1,400	$ 1,400