Long-Term Debt (Detail) - USD ($)	6 Months Ended
	Dec. 26, 2015	Aug. 06, 2015	Jun. 27, 2015	Sep. 03, 2014
Debt Disclosure [Line Items]
Long-term Debt	$ 28,800,000		$ 31,300,000	$ 35,000,000
Line of Credit Facility, Amount Outstanding	12,700,000		11,600,000
Letters of Credit Outstanding, Amount	400,000		300,000
Additional availability of line of credit	31,900,000		$ 18,000,000
Debt Instrument, Periodic Payment, Principal	$ 1,250,000
Line of Credit | One-Month London Interbank Offered Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	1.50%
Line of Credit | Federal Funds Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	1.50%
Wells Fargo Bank
Debt Disclosure [Line Items]
Increase in revolving line of credit		$ 45,000,000.0
Debt Instrument, Basis Spread on Variable Rate, 1.75% | Term Loan | Fixed Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	1.75%
Debt Instrument, Basis Spread on Variable Rate, 1.75% | Line of Credit | Fixed Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	1.75%
Debt Instrument, Basis Spread on Variable Rate, 2.00% | Term Loan | Fixed Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	2.00%
Debt Instrument, Basis Spread on Variable Rate, 2.00% | Line of Credit | Fixed Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	2.00%
Debt Instrument, Basis Spread on Variable Rate, 2.25% | Term Loan | Fixed Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	2.25%
Debt Instrument, Basis Spread on Variable Rate, 2.25% | Line of Credit | Fixed Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	2.25%
Minimum
Debt Disclosure [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	2.325%		2.28%
Maximum
Debt Disclosure [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	3.50%		3.25%