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Stock-Based Compensation - Restricted Stock Award Activity (Details) (USD $)
12 Months Ended
Dec. 31, 2013
RSAs [Roll Forward]  
Outstanding, end of year (in shares) 709,780
Restricted Stock
 
RSAs [Roll Forward]  
Outstanding, beginning of year (in shares) 181,535
Granted (in shares) 1,116,000
Settled (in shares) (252,755)
Outstanding, end of year (in shares) 709,780
Weighted Average Fair Value [Roll Forward]  
Outstanding, beginning of year (in shares) $ 0.71
Granted (in shares) $ 1.07
Settled (in shares) $ 0.68
Outstanding, end of year (in shares) $ 1.45