Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments - Additional Information (Detail)

v2.4.0.8
Derivative Financial Instruments - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2013
Industrial Revenue Bond [Member]
Dec. 31, 2013
Term Note [Member]
Dec. 31, 2012
Term Note [Member]
Derivative Instruments, Gain (Loss) [Line Items]        
Notional amount of interest rate swap   $ 1,500,000    
Interest of interest rate swap   3.99%    
Derivative, variable rate basis   3.99% plus a spread based on the Company's leverage ratio    
Derivative, date inception   Feb. 06, 2006    
Derivative, date maturity   Feb. 01, 2016    
Derivative, date inception Mar. 19, 2009      
Fair value of interest rate derivative liabilities     $ 100,000 $ 200,000