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Distribution Agreements (Narrative) (Details) (USD $)
Share data in Millions, unless otherwise specified
6 Months Ended 0 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jan. 21, 2011
Jan. 15, 2010
Better World [Member]
Oct. 10, 2010
Goldenston Worldwide Limited [Member]
Jan. 15, 2010
Goldenston Worldwide Limited [Member]
Oct. 10, 2010
Samyang Optics [Member]
Jan. 27, 2010
Samyang Optics [Member]
Jun. 30, 2012
Distribution Agreements [Member]
Jun. 30, 2011
Distribution Agreements [Member]
Jun. 30, 2012
Distribution Agreements [Member]
Jun. 30, 2011
Distribution Agreements [Member]
Distribution Agreements [Line Items]                        
Depreciation and amortization expense $ 3,605,000 $ 3,286,000             $ 560,000 $ 560,000 $ 1,100,000 $ 1,100,000
Shares issue for distribution agreements       6 30              
Value of shares issue for distribution agreements       $ 2,160,000 $ 14,400,000              
Percentage acquired in Jonway Auto 51.00%   51.00%                  
Term of distribution agreement           10 years 1 year          
Supply commitment, number of vehicles               100