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Stock-Based Compensation (Details) - Stock option activity (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2014
Stock option activity [Abstract]    
Outstanding at December 31, 2013   714,712
Outstanding at December 31, 2013   $ 7.17
Outstanding at December 31, 2013 6 years 18 days 7 years 211 days
Outstanding at December 31, 2013     
Cancelled (79,504)  
Cancelled $ 2.83  
Outstanding at March 31, 2014 635,208 635,208
Outstanding at March 31, 2014 $ 7.71 $ 7.71
Outstanding at March 31, 2014 6 years 18 days 7 years 211 days
Outstanding at March 31, 2014 355 355
Exercisable at March 31, 2014 556,343 556,343
Exercisable at March 31, 2014 $ 8.39 $ 8.39
Exercisable at March 31, 2014 5 years 284 days  
Exercisable at March 31, 2014 $ 286 $ 286