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Employee Benefit Plans (Schedule of Changes in the Liability for the Salary Continuation Plan) (Detail) (USD $)
12 Months Ended
May 30, 2014
May 31, 2013
Compensation Related Costs [Abstract]    
Accrued salary continuation plan - beginning of year $ 1,229,459 $ 1,279,233
Benefits accrued 143,695 131,804
Benefits paid (240,000) (181,578)
Accrued salary continuation plan - end of year $ 1,133,154 $ 1,229,459