Stock-Based Compensation (Additional Information) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Jan. 06, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Jun. 30, 2016
Apr. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Aggregate intrinsic value of options exercised       $ 42      
Stock-based compensation expense   $ 1,003 $ 958 $ 3,168 $ 2,860    
Number of shares authorized (in shares)           3,602,328  
Stock options granted (in shares)       1,537,000      
Common stock options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Compensation costs not yet recognized   $ 6,200   $ 6,200      
Period for recognizing costs (in years)       2 years 1 month 28 days      
Performance Shares [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unvested options granted (in shares)   111,000   111,000      
Vest On Market Condition [Member] | Non Qualified Stock Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock-based compensation expense       $ 138      
Stock options granted (in shares) 206,625            
Minimum stock price for the options to vest (in usd per share) $ 6.00            
Minimum stock price for the options to vest, number of consecutive trading days (in days) 20 days            
Expiration period (in years) 10 years            
2011 Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares authorized (in shares)             5,002,328