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Stockholders' Equity (Details 2) (USD $)
6 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2013
Range One [Member]
Jun. 30, 2013
Range Two [Member]
Jun. 30, 2013
Range Three [Member]
Jun. 30, 2013
Range Four [Member]
Stockholders Equity [Line Items]            
Range of Exercise Price (Lower)     $ 0.50 $ 1.01 $ 2.01 $ 3.01
Range of Exercise Price (Upper)     $ 1.00 $ 2.00 $ 3.00 $ 4.00
Outstanding Options 16,289,866   5,400,000 4,182,999 1,903,534 4,803,333
Outstanding Weighted-Average Price, at ending period $ 1.90 $ 1.98 $ 0.73 $ 1.19 $ 2.47 $ 3.59
Outstanding Weighted-Average Remaining Contractual Life (in Years), at ending period 5 years 10 months 24 days 6 years 1 month 6 days 6 years 8 years 1 month 6 days 5 years 3 months 18 days 4 years 2 months 12 days
Outstanding Aggregate Intrinsic Value, at ending period $ 5,460,844 $ 1,926,000 $ 4,086,000 $ 1,374,844 $ 0 $ 0