Note 10 - Share-based Employee Compensation - Summary of Stock Option Activity (Details)	9 Months Ended
	Mar. 01, 2016 $ / shares shares
Stock Options Services-Based [Member]
Balance (in shares) | shares	2,441
Balance (in dollars per share) | $ / shares	$ 7.78
Cancellations and forfeitures (in shares) | shares	(210)
Cancellations and forfeitures (in dollars per share) | $ / shares	$ 6.60
Expired (in shares) | shares	(96)
Expired (in dollars per share) | $ / shares	$ 9.06
Balance (in shares) | shares	2,135
Balance (in dollars per share) | $ / shares	$ 7.84
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	3 years 167 days
Exercisable (in shares) | shares	1,676
Exercisable (in dollars per share) | $ / shares	$ 8.20
Exercisable	2 years 350 days
Stock Options Performance-based [Member]
Balance (in shares) | shares	515
Balance (in dollars per share) | $ / shares	$ 8.60
Cancellations and forfeitures (in shares) | shares	(515)
Cancellations and forfeitures (in dollars per share) | $ / shares	$ 8.60
Balance (in shares) | shares
Balance (in dollars per share) | $ / shares