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11. Stock-Based Compensation (Details 3) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Number of Outstanding, Ending 9,127,497 7,524,834
Weighted Average Exercise Price Outstanding, Ending $ 0.49 $ 0.59
Remaining Contractual Term (In Years) 2 years 9 months 15 days 3 years 7 days
Average Intrinsic Value $ 532,043 $ 2,517,107
Vested Options
    
Number of Outstanding, Ending 5,163,175 5,061,850
Weighted Average Exercise Price Outstanding, Ending $ 0.44 $ 0.63
Remaining Contractual Term (In Years) 1 year 9 months 7 days 2 years 2 months 16 days
Average Intrinsic Value 523,112 2,081,910
Unvested Options
    
Number of Outstanding, Ending 3,694,322 2,462,984
Weighted Average Exercise Price Outstanding, Ending $ 0.57 $ 0.52
Remaining Contractual Term (In Years) 4 years 1 month 10 days 4 years 8 months 8 days
Average Intrinsic Value 8,931 435,197
Options Granted Outside the Company stock plans
    
Number of Outstanding, Ending 977,500 977,500
Weighted Average Exercise Price Outstanding, Ending $ 0.55 $ 0.55
Remaining Contractual Term (In Years) 3 years 10 months 6 days 4 years 10 months 6 days
Average Intrinsic Value 0 146,625
Options Granted Outside the Company stock plans | Vested Options
    
Number of Outstanding, Ending 690,000 402,500
Weighted Average Exercise Price Outstanding, Ending $ 0.55 $ 0.55
Remaining Contractual Term (In Years) 3 years 10 months 6 days 4 years 10 months 6 days
Average Intrinsic Value 0 60,375
Options Granted Outside the Company stock plans | Unvested Options
    
Number of Outstanding, Ending 287,500 575,000
Weighted Average Exercise Price Outstanding, Ending $ 0.55 $ 0.55
Remaining Contractual Term (In Years) 3 years 10 months 6 days 4 years 10 months 6 days
Average Intrinsic Value $ 0 $ 86,250