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Notes Payable - Additional Information (Detail) (Revolving Credit Facility One, USD $)
In Millions, unless otherwise specified
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Prior to July 27, 2012
Dec. 31, 2013
London Interbank Offered Rate (LIBOR)
May 01, 2012
London Interbank Offered Rate (LIBOR)
Dec. 31, 2013
London Interbank Offered Rate (LIBOR)
Prior to July 27, 2012
Line Of Credit Facility [Line Items]            
Borrowed under the agreement $ 0.5 $ 0.5        
Additional borrowings available based on the Company's borrowing 7.9 6.9        
Revolving credit line 10.0          
Revolving credit agreement maturity date Oct. 01, 2015          
Leverage test of total liabilities to total net worth 1.00          
Fixed Charge Coverage Ratio 1.25          
Credit facility's interest rate, Description credit facility’s interest rate is LIBOR plus 3.25% per annum   interest rate on the Company’s borrowings was 30 day LIBOR rate plus 2.75% per year      
Credit facility's interest rate       3.25%   2.75%
Commitment fee of the unused portion of the credit       0.30%    
Preferred stock, at redemption value         $ 5