Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Summary of Restricted Stock Activity (Detail)

v2.4.0.8
Stock-based Compensation - Summary of Restricted Stock Activity (Detail) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Restricted Stock, Outstanding at the beginning of period   100,000
Restricted Stock, Granted   99,468
Restricted Stock, Vested   (31,600)
Restricted Stock, Forfeited   0
Restricted Stock, Outstanding at the end of period 167,868 167,868
Restricted Stock
   
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Restricted Stock, Granted 0  
Grant Date Fair Value Per Share, Outstanding at the beginning of period   $ 5.89
Grant Date Fair Value Per Share, Granted   $ 6.98
Grant Date Fair Value Per Share, Vested   $ 6.98
Grant Date Fair Value Per Share, Forfeited   $ 0
Grant Date Fair Value Per Share, Outstanding at the end of period $ 6.32 $ 6.32