Note 10 - Share-based Employee Compensation - Summary of Stock Option Activity (Details)
shares in Thousands |
3 Months Ended |
|
Aug. 30, 2016
$ / shares
shares
|
|---|
| Stock Options Services-Based [Member] |
|
| Outstanding (in shares) | shares |
2,066
|
| Outstanding (in dollars per share) | $ / shares |
$ 7.89
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term |
|
| Granted (in shares) | shares |
809
|
| Granted (in dollars per share) | $ / shares |
$ 3.82
|
| Cancellations and forfeitures (in shares) | shares |
(3)
|
| Cancellations and forfeitures (in dollars per share) | $ / shares |
$ 6.40
|
| Expired (in shares) | shares |
(87)
|
| Expired (in dollars per share) | $ / shares |
$ 6.64
|
| Exercisable at August 30, 2016 (in shares) | shares |
1,806
|
| Exercisable at August 30, 2016 (in dollars per share) | $ / shares |
$ 8.14
|
| Exercisable at August 30, 2016 |
2 years 262 days
|
| Stock Options Performance-based [Member] |
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term |
4 years 25 days
|
| Outstanding (in shares) | shares |
2,785
|
| Outstanding (in dollars per share) | $ / shares |
$ 6.75
|