Share-Based Compensation (Details Textual) - USD ($)	6 Months Ended
Aug. 28, 2021	Aug. 29, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Noncash Expense	$ 3,261,000	$ 3,662,000
Cash proceeds from exercise of stock options	4,100,000	0
Aggregate Intrinsic Value, Exercisable	2,300,000
Total unrecognized compensation cost related to nonvested share	$ 12,400,000
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Excluding Option Exercised		$ 0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period, Nonvested	30 months
Total fair value of shares vested	$ 4,800,000

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Amount of cash inflow from issuance of shares under share-based payment arrangement. Excludes option exercised.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Amount of noncash expense for share-based payment arrangement.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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