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6. Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock Option Activity
    Number of Shares     Weighted Avg. Exercise Price    

Weighted Average Remaining Contract Term

(# years)

    Intrinsic Value  
Outstanding at January 1, 2015     2,423,253     $ 2.92              
Granted     1,008,026       0.67              
Exercised     -       -              
Forfeited and canceled     (7,500 )     1.68              
Outstanding at March 31, 2015     3,423,779     $ 2.26       8.4     $ -  
Exercisable at March 31, 2015     1,467,068     $ 3.43       6.8     $ -  
Warrant Activity
    Number of Shares     Weighted Avg. Exercise Price    

Weighted Average Remaining Contract Term

(# years)

    Intrinsic Value  
Outstanding at January 1, 2015     3,046,801     $ 4.08              
Granted     -       -              
Exercised     -       -              
Forfeited and canceled     -       -              
Outstanding at March 31, 2015     3,046,801     $ 4.08       1.96     $ -  
Exercisable at March 31, 2015     3,046,801     $ 4.08       1.96     $ -