Supplementary Statement of Income Information (Detail) - USD ($)	12 Months Ended
	May. 29, 2015	May. 30, 2014
Other Income and Expenses [Abstract]
Maintenance and repairs	$ 6,569,215	$ 6,909,152
Depreciation	3,906,766	3,778,563
Payroll taxes	$ 2,103,563	$ 2,204,506