Note 6 - Stock-based Compensation - Option Activity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
May 29, 2022	Feb. 27, 2022
Outstanding options (in shares)	648,300
Balance, weighted average exercise price (in dollars per share)	$ 12.96
Outstanding aggregate intrinsic value	$ 0	$ 0
Outstanding options, granted (in shares)	131,600
Granted, weighted average exercise price (in dollars per share)	$ 12.06
Outstanding options, exercised (in shares)	0
Exercised, weighted average exercise price (in dollars per share)	$ 0
Outstanding options, terminated or expired (in shares)	0
Terminated or expired, weighted average exercise price (in dollars per share)	$ 0
Outstanding options (in shares)	779,900
Balance, weighted average exercise price (in dollars per share)	$ 12.80
Balance, weighted average remaining contractual term (Year)	5 years 8 months 26 days
Outstanding options, vested and exercisable (in shares)	471,013
Vested and exercisable, weighted average exercise price (in dollars per share)	$ 12.70
Vested and exercisable, weighted average remaining contractual term (Year)	3 years 8 months 23 days
Vested and exercisable, aggregate intrinsic value	$ 0

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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