Quarterly report pursuant to Section 13 or 15(d)

Notes Payable to Former Stockholders - Additional Information (Detail)

v2.4.0.8
Notes Payable to Former Stockholders - Additional Information (Detail) (USD $)
3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Notes Payable [Line Items]    
Accrued interest expense pertaining to Notes $ 600,000 $ 400,000
Interest expense 404,000  
Notes Payable to Former Stockholders [Member]
   
Notes Payable [Line Items]    
Interest expense $ 200,000  
Restricted Stock - Notes Payable [Member]
   
Notes Payable [Line Items]    
Unsecured notes interest rate 5.00%  
Unsecured notes maturity date Apr. 14, 2020  
SARs - Notes Payable [Member]
   
Notes Payable [Line Items]    
Unsecured notes interest rate 5.00%  
Unsecured notes maturity date Apr. 14, 2020