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CONVERTIBLE SENIOR NOTE (Narrative) (Details) (USD $)
1 Months Ended 12 Months Ended
Mar. 31, 2009
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Mar. 18, 2009
Debt Instrument [Line Items]            
Warrants   $ 15,566,332 $ 677,332      
Amortization of the debt discount   36,297 294,543 585,627    
Convertible Senior Note [Member] | Nokia Growth Partners (NGP) [Member]
           
Debt Instrument [Line Items]            
Note issuance date Mar. 09, 2009          
Long-term convertible debt      2,032,620 6,775,400   6,775,400
Debt conversion, price per share           $ 0.08915
Annual rate         7.00% 8.00%
Minimum interest rate     6.00%      
Maximum interest rate     8.00%      
Debt Instrument Convertible Number Of Equity Instruments     80,000,000      
Purchase price per share     $ 0.125      
Beneficial conversion feature, amount     3,667,931      
Debt discount      1,303,579      
Amortization of the debt discount   36,297 294,543 585,627    
Prepaid principal amount of convertible senior note, percent   30.00% 70.00%      
Debt instrument, reduction in principal balance due to repayment     9,310,000      
Prepaid portion, convertible American Depositary Shares   570,000 1,330,000      
Prepaid portion, convertible shares   22,800,000 53,200,000      
Interest rate on outstanding term loan   31.85%        
Convertible Senior Note [Member] | Nokia Growth Partners (NGP) [Member] | Interest Expense [Member]
           
Debt Instrument [Line Items]            
Debt discount     $ 4,345,263