Long-term Incentive Plans (Schedule of Stock Option Transactions) (Detail) (USD $)	12 Months Ended
	May 31, 2013	Jun. 01, 2012	Oct. 15, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Shares, outstanding - beginning of year		329,000	0
Shares, granted
Shares, exercised
Shares, forfeited
Shares, expired		329,000
Shares, outstanding - end of year			0
Weighted average exercise price, outstanding - beginning of year		$ 3.81
Weighted average exercise price, granted
Weighted average exercise price, exercised
Weighted average exercise price, forfeited
Weighted average exercise price, expired		$ 3.81