Note 7 - Shareholders' Equity (Details) - USD ($) $ in Thousands, shares in Millions |
3 Months Ended | 126 Months Ended | ||
|---|---|---|---|---|
May. 30, 2015 |
May. 31, 2014 |
May. 30, 2015 |
Jul. 31, 2014 |
|
| Stockholders' Equity Note [Abstract] | ||||
| Stock Repurchase Program, Authorized Amount | $ 9,450,000 | |||
| Treasury Stock, Shares, Acquired (in Shares) | 5.3 | 167.8 | ||
| Payments for Repurchase of Common Stock | $ 385,349 | $ 272,883 | $ 9,000,000 | |
| Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 500,000 | $ 500,000 | ||