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Stock-Based Compensation (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Summarizes of stock-based compensation expense [Abstract]          
Total stock-based compensation expense $ 376,100   $ 23,800 $ 565,500 $ 34,600
Estimated fair value of each stock-based award granted [Abstract]          
Estimated Volatility, Minimum (in hundredths) 70.00%   180.00% 70.00% 180.00%
Estimated Volatility, Maximum (in hundredths) 174.00%   185.00% 174.00% 185.00%
Annualized Forfeiture Rate, Minimum (in hundredths) 0.00%     0.00%  
Annualized Forfeiture Rate, Maximum (in hundredths) 9.19%     9.19%  
Annualized Forfeiture Rate (in hundredths)     2.00%   2.00%
Estimated Exercise Factor, Minimum 5   20 5 20
Estimated Exercise Factor, Maximum 15   150 15 150
Risk-Free Interest Rate, Minimum (in hundredths) 0.18%   2.82% 0.18% 2.82%
Risk-Free Interest Rate, Maximum (in hundredths) 2.04%   3.24% 2.04% 3.24%
Dividends (in hundredths) 0.00%   0.00% 0.00% 0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]          
Outstanding - Beginning of Period (in shares) 13,983,105 11,636,694   11,636,694  
Granted (in shares) 1,410,000     3,912,500  
Exercised (in shares) (74,724)     (130,813)  
Forfeited or expired (in shares) (1,156,666)     (1,256,666)  
Outstanding - End of Period (in shares) 14,161,715 13,983,105   14,161,715  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]          
Outstanding - Beginning of Period (in dollars per share) $ 0.19 $ 0.18   $ 0.18  
Granted (in dollars per share) $ 0.18     $ 0.21  
Exercised (in dollars per share) $ 0.06     $ 0.06  
Forfeited or expired (in dollars per share) $ 0.21     $ 0.21  
Outstanding - End of Period (in dollars per share) $ 0.19 $ 0.19   $ 0.19  
Weighted average remaining contractual terms (in years) 6 years 9 months 29 days        
Aggregate intrinsic value 187,700     187,700  
Weighted average fair value of options granted (in dollars per share) $ 0.14 $ 0.18   $ 0.17  
Shares fully vested (in shares) 6,388,277 4,428,177   6,388,277  
Shares expected to vest in future (in shares) 7,533,005 9,435,946   7,533,005  
Shares expected to be forfeited (in shares) 240,433 118,982   240,433  
Stock option vesting term       33 months  
Unrecognized compensation cost 656,400 904,500   656,400  
Weighted-average period unrecognized compensation cost to be recognized   18 months   14 months  
Maximum [Member]
         
Estimated fair value of each stock-based award granted [Abstract]          
Expected Option Term (Years) 10 years   10 years 10 years 10 years
Minimum [Member]
         
Estimated fair value of each stock-based award granted [Abstract]          
Expected Option Term (Years) 3 months   7 years 6 months 3 months 7 years 6 months
Costs of revenue [Member]
         
Summarizes of stock-based compensation expense [Abstract]          
Total stock-based compensation expense 4,100   1,000 10,400 2,000
Selling and marketing expense [Member]
         
Summarizes of stock-based compensation expense [Abstract]          
Total stock-based compensation expense 25,200   4,200 51,600 8,900
General and administrative expense [Member]
         
Summarizes of stock-based compensation expense [Abstract]          
Total stock-based compensation expense 260,600   14,700 333,700 17,600
Research and development expense [Member]
         
Summarizes of stock-based compensation expense [Abstract]          
Total stock-based compensation expense $ 86,200   $ 3,900 $ 169,800 $ 6,100