Long-Term Debt - Additional Information (Detail) (USD $)
9 Months Ended 1 Months Ended 9 Months Ended
Sep. 30, 2014
Installment
Dec. 31, 2013
Jun. 30, 2013
Minimum [Member]
Sep. 30, 2014
Minimum [Member]
Debt Instrument [Line Items]        
Borrowings credit facility     $ 8,500,000  
Borrowings     4,500,000  
Outstanding balance on prior credit facility     2,300,000  
Gain or loss associated with debt extinguishment 0      
Credit facility expired borrowings   4,000,000    
Interest rate of credit facility 10.25%     10.25%
Prime rate 3.25%      
Line of credit facility installment period 30      
Amount outstanding under credit facilities $ 3,700,000 $ 4,500,000