Annual report pursuant to Section 13 and 15(d)

Long-Term Debt and Note Payable - Summary of Long-Term Debt (Parenthetical) (Detail)

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Long-Term Debt and Note Payable - Summary of Long-Term Debt (Parenthetical) (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Series 2007 Industrial Revenue Bonds [Member]
 
Debt Instrument [Line Items]  
New York Industrial Development Agency payable $ 340,000
New York Industrial Development Agency payable thereafter 330,000
Interest rate 3.20%
Series 1999 Industrial Revenue Bonds [Member]
 
Debt Instrument [Line Items]  
New York Industrial Development Agency payable 350,000
New York Industrial Development Agency payable thereafter 145,000
Interest rate 3.20%
Series 1998 Industrial Revenue Bonds [Member]
 
Debt Instrument [Line Items]  
New York Industrial Development Agency payable 400,000
Interest rate 3.20%
Senior Term Note issued under the Third Amended and Restated Credit Agreement [Member]
 
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 3.20%
Mandatory unscheduled prepayments 25.00%
Senior Term Note issued under the Third Amended and Restated Credit Agreement [Member] | July 18, 2013 to June 30, 2015 [Member]
 
Debt Instrument [Line Items]  
Senior Term Notes, payable 2,375,000
Senior Term Note issued under the Third Amended and Restated Credit Agreement [Member] | June 30, 2015 to June 30, 2016 [Member]
 
Debt Instrument [Line Items]  
Senior Term Notes, payable 3,562,000
Senior Term Note issued under the Third Amended and Restated Credit Agreement [Member] | June 30, 2016 to March 31, 2018 [Member]
 
Debt Instrument [Line Items]  
Senior Term Notes, payable 4,750,000
Senior Notes [Member]
 
Debt Instrument [Line Items]  
Senior Term Notes, payable 2,000,000
Balloon payment in 2014 $ 5,000,000
Minimum [Member] | Senior Term Note issued under the Third Amended and Restated Credit Agreement [Member]
 
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 2.25%
Minimum [Member] | Senior Notes [Member]
 
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 2.25%
Maximum [Member] | Senior Term Note issued under the Third Amended and Restated Credit Agreement [Member]
 
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 3.50%
Maximum [Member] | Senior Notes [Member]
 
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 3.50%
Revolving Credit Facility [Member]
 
Debt Instrument [Line Items]  
Line of Credit Maturity Aug. 31, 2016
Revolving Credit Facility [Member] | Minimum [Member]
 
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 1.50%
Revolving Credit Facility [Member] | Maximum [Member]
 
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 2.50%
Credit Agreement [Member]
 
Debt Instrument [Line Items]  
Restated credit agreement date Jul. 18, 2013