Note 6 - Shareholders' Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	Feb. 26, 2023	Feb. 27, 2022
Unrealized losses on investments, net of taxes of $2,279 and $1,629, respectively	$ (4,244)	$ (1,965)
Accumulated balance	$ (4,244)	$ (1,965)

Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.

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