Quarterly report pursuant to Section 13 or 15(d)

Debt - Additional Information (Detail)

v3.3.0.814
Debt - Additional Information (Detail) - USD ($)
 9 Months Ended
Sep. 30, 2015
Mar. 23, 2015
Dec. 31, 2014
Line of Credit Facility [Line Items]      
Credit facility, maturity date Mar. 23, 2020    
Eurodollar [Member]      
Line of Credit Facility [Line Items]      
Interest on the credit facility, description Eurodollar Loan at a per annum rate equal to LIBOR plus a margin ranging from 2.00% to 2.50%    
Maximum [Member] | Eurodollar LIBOR Rate [Member]      
Line of Credit Facility [Line Items]      
Effective floating interest rate 2.50%    
Minimum [Member] | Eurodollar LIBOR Rate [Member]      
Line of Credit Facility [Line Items]      
Effective floating interest rate 2.00%    
Term Loan A [Member]      
Line of Credit Facility [Line Items]      
Line of credit facility   $ 27,000,000  
Current borrowings under credit facility   27,000,000  
Optional pre-payments $ 2,900,000    
First payment of debt using previous optional pre-payments 1,000,000    
Term Loan B [Member]      
Line of Credit Facility [Line Items]      
Line of credit facility   8,000,000  
Remaining available balance 6,300,000    
Additional available balance 1,700,000    
Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Line of credit facility   $ 10,000,000  
Current borrowings under credit facility     $ 566,000
Remaining available balance $ 9,882,000   $ 6,584,000
CBFR Loans [Member]      
Line of Credit Facility [Line Items]      
Interest on the credit facility, description CBFR Loans which bears interest at a per annum rate equal to (a) the Lender's prime rate or (b) LIBOR for a 30 day interest period plus 2.50%, in each case plus a margin ranging from -0.75% to -0.25%.    
CBFR Loans [Member] | LIBOR [Member]      
Line of Credit Facility [Line Items]      
Effective floating interest rate 2.50%    
CBFR Loans [Member] | Maximum [Member] | LIBOR [Member]      
Line of Credit Facility [Line Items]      
Effective floating interest rate (0.75%)    
CBFR Loans [Member] | Minimum [Member] | LIBOR [Member]      
Line of Credit Facility [Line Items]      
Effective floating interest rate (0.25%)