Debt - Additional Information (Detail)		3 Months Ended
	Apr. 08, 2016 USD ($)	Mar. 31, 2016 USD ($)	Sep. 30, 2013	Feb. 15, 2013 USD ($)
Maximum borrowing under PNC facility				$ 40,000,000
PNC Facility effective rate of interest		4.00%
Interest rate description under PNC facility		Interest charges with respect to loans are computed on the actual principal amount of loans outstanding during the month at a rate per annum equal to (A) with respect to Domestic Rate Loans (as defined in the PNC Facility), the sum of the Alternate Base Rate (as defined in the PNC Facility) plus one half of one percent (.50%) and (B) with respect to Eurodollar Rate Loans, the sum of the Eurodollar Rate plus two and one quarter of one percent (2.25%).
Long-term Line of Credit		$ 29,808,000
Line of Credit Facility, Current Borrowing Capacity		$ 10,200,000
Notes Payable
Debt Instrument, Maturity Date		Jun. 30, 2020
Fifth Amendment | Subsequent Event
Line of Credit Facility, Expiration Date	Jun. 30, 2020
Revolving Credit Facility
Maximum borrowing under PNC facility				36,000,000
Revolving Credit Facility | Fourth Amendment
Interest rate description under PNC facility		Revolving Interest Rate shall mean an interest rate per annum equal to (a) the sum of the Alternate Base Rate (as defined in the PNC Facility) plus one half of one percent (.50%) with respect to Domestic Rate Loans and (b) the sum of the Eurodollar Rate plus two and one quarter of one percent (2.25%) with respect to the Eurodollar Rate Loans.
Revolving Credit Facility | Base Rate
Debt instrument, description of variable rate basis		Alternate Base Rate (as defined in the PNC Facility) plus one half of one percent
Fixed charge coverage ratio percentage		0.50%
Revolving Credit Facility | Base Rate | Fourth Amendment
Debt instrument, description of variable rate basis		Base Rate (as defined in the PNC Facility) plus one half of one percent
Revolving Credit Facility | Eurodollar | Fourth Amendment
Debt instrument, description of variable rate basis		Eurodollar Rate plus two and one quarter of one percent
Minimum
Fixed charge coverage ratio		1.00	1.00
Minimum | Fifth Amendment | Subsequent Event
Maximum borrowing under PNC facility	$ 40,000,000
Minimum | Revolving Credit Facility | Fifth Amendment | Subsequent Event
Maximum borrowing under PNC facility	36,000,000
Maximum
Fixed charge coverage ratio		1.10	1.10
Maximum | Fifth Amendment | Subsequent Event
Maximum borrowing under PNC facility	50,000,000
Maximum | Revolving Credit Facility | Fifth Amendment | Subsequent Event
Maximum borrowing under PNC facility	$ 46,000,000
Term Loan
Maximum borrowing under PNC facility				$ 4,000,000
Term Loan | Fourth Amendment
Interest rate description under PNC facility		Term Loan Rate shall mean an interest rate per annum equal to (a) the sum of the Alternate Base Rate plus one half of one percent (.50%) with respect to the Domestic Rate Loans and (b) the sum of the Eurodollar Rate plus two and one quarter of one percent (2.25%) with respect to Eurodollar Rate Loans.
Term Loan | Base Rate | Fourth Amendment
Debt instrument, description of variable rate basis		Base Rate plus one half of one percent
Term Loan | Eurodollar | Fourth Amendment
Debt instrument, description of variable rate basis		Eurodollar Rate plus two and one quarter of one percent
Term Loan | Revolving Credit Facility | Base Rate
Fixed charge coverage ratio percentage		0.50%
Eurodollar Rates | Revolving Credit Facility
Fixed charge coverage ratio percentage		2.25%
Eurodollar Rates | Term Loan
Fixed charge coverage ratio percentage		2.25%