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 6 Months Ended
Jun. 30, 2014
Jun. 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     
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     
Grant Date Fair Value Per Share, Outstanding at the end of period $ 6.32 $ 6.32