Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Additional Information (Detail)

v2.4.0.8
Employee Benefit Plans - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]    
Employee contribution percentage 4.00%  
Employer matching contribution $ 107,000 $ 85,000