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Stock Options (Tables)
3 Months Ended
Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock Option Activity

A summary of stock option activity for the three months ended March 31, 2016 is as follows:

 

    Outstanding     Weighted-Average     Aggregate  
    Stock Options     Exercise Price     Intrinsic Value (1)  
Balance as of December 31, 2015     1,628,000     $ 1.30     $ -  
Expired     (88,000 )     0.74       -  
Balance as of March 31, 2016     1,540,000     $ 1.09     $ -  
                         
Equity awards available for grant, net of restricted stock (811,576) at March 31, 2016     7,648,424                  

 

(1) Amounts represent the difference between the exercise price and the fair value of common stock at period end for all in the money options outstanding based on the fair value per share of common stock.