Note 13 - Fair Value Measurements - Fair Values of Financial Assets and Liabilities Measured on a Recurring Basis (Details) - Fair Value, Inputs, Level 1 [Member] - USD ($) $ in Thousands |
Dec. 01, 2015 |
Jun. 02, 2015 |
|---|---|---|
| Deferred compensation plan: other investments – Assets | $ 7,499 | $ 8,017 |
| Deferred compensation plan: other investments – Liabilities | $ (7,499) | $ (8,017) |