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Stock-Based Compensation (Stock Option Activity) (Details) (USD $)
6 Months Ended
Jun. 30, 2013
Number of Options  
Outstanding at beginning of period 2,184,583
Granted at market price   
Exercised (94,500)
Forfeited (438,750)
Outstanding at end of period 1,651,333
Exercisable at end of period 612,583
Weighted Average Exercise Price  
Outstanding at beginning of period $ 0.89
Granted at market price   
Exercised   
Forfeited   
Outstanding at end of period $ 0.82
Exercisable at end of period $ 0.51
Weighted Average Fair Value  
Outstanding at beginning of period $ 0.48
Granted at market price   
Outstanding at end of period $ 0.48
Exercisable at end of period $ 0.29
Remaining Contractual Life  
Outstanding at end of period 8 years 4 months 25 days
Exercisable at end of period 7 years 4 months 25 days