XML 46 R27.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stock-Based Compensation (Details) (USD $)
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Stock-Based Compensation    
Stock-based compensation expense $ 1,500,000 $ 900,000
Options
    
Stock-Based Compensation    
Unamortized compensation cost, net of expected forfeitures 5,100,000  
Weighted average expected period over which the expense is to be recognized 2 years 4 months 17 days  
Tax benefits associated with exercise of stock options 0 0
RSU's
    
Stock-Based Compensation    
Weighted average expected period over which the expense is to be recognized 2 years 11 months 12 days  
Unamortized compensation cost for awards other than options, net of expected forfeitures $ 1,500,000  
RSU's | Minimum
    
Stock-Based Compensation    
Stock-based compensation expense, recognition period 3 years  
RSU's | Maximum
    
Stock-Based Compensation    
Stock-based compensation expense, recognition period 5 years  
Inducement grant options
    
Number of Shares    
Balance at the beginning of the period (in shares) 3,178,000  
Options granted (in shares) 118,000  
Options cancelled (in shares) (40,000)  
Options exercised (in shares) (32,000)  
Balance at the end of the period (in shares) 3,224,000  
Weighted Average Exercise Prices    
Balance at the beginning of the period (in dollars per share) $ 4.42  
Options granted (in dollars per share) $ 5.22  
Options cancelled (in dollars per share) $ 4.47  
Options exercised (in dollars per share) $ 3.88  
Balance at the end of the period (in dollars per share) $ 4.46  
Plans | Options
    
Available for Grant    
Balance at the beginning of the period (in shares) 422,000  
Additional shares authorized under the 2010 Plan 500,000  
Options granted (in shares) (49,000)  
Options cancelled (in shares) 60,000  
Options expired (in shares) (60,000)  
Balance at the end of the period (in shares) 374,000  
Number of Shares    
Balance at the beginning of the period (in shares) 6,727,000  
Options granted (in shares) 49,000  
Options cancelled (in shares) (60,000)  
Options exercised (in shares) (300,000)  
Balance at the end of the period (in shares) 6,416,000  
Weighted Average Exercise Prices    
Balance at the beginning of the period (in dollars per share) $ 3.86  
Options granted (in dollars per share) $ 4.69  
Options cancelled (in dollars per share) $ 3.42  
Options exercised (in dollars per share) $ 3.58  
Options expired (in dollars per share) $ 3.42  
Balance at the end of the period (in dollars per share) $ 3.89  
Plans | RSU's
    
Available for Grant    
Restricted stock units granted (in shares) (499,000)