Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Summary of Outstanding Notes Issued to an Employees for the Exercise of Stock Options (Detail)

v2.4.0.8
Stockholders' Equity - Summary of Outstanding Notes Issued to an Employees for the Exercise of Stock Options (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Debt Conversion [Line Items]    
Outstanding Balance of Employee Loans $ 375 $ 410
Note Outstanding Two [Member]
   
Debt Conversion [Line Items]    
Date Issued 2006-04  
Outstanding Balance of Employee Loans    3
Maturity Date of Note 2015-04  
Interest Rate on Note 7.77%  
Note Outstanding Three [Member]
   
Debt Conversion [Line Items]    
Date Issued 2006-05  
Outstanding Balance of Employee Loans    32
Maturity Date of Note 2016-05  
Interest Rate on Note 7.87%  
Note Outstanding One [Member]
   
Debt Conversion [Line Items]    
Date Issued 2006-11  
Outstanding Balance of Employee Loans $ 375 $ 375
Maturity Date of Note 2015-11  
Interest Rate on Note 8.15%