Note 3 - Marketable Securities - Estimated Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands |
May 29, 2022 |
Feb. 27, 2022 |
|---|---|---|
| Due in one year or less | $ 64,123 | |
| Due after one year through five years | 38,871 | |
| Debt Securities, Available-for-Sale, Total | $ 102,994 | $ 97,550 |