Note 6 - Stock-Based Compensation (Details) - Changes in the Company’s Restricted Stock (Restricted Stock [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Jun. 01, 2013
Restricted Stock [Member]
Note 6 - Stock-Based Compensation (Details) - Changes in the Company’s Restricted Stock [Line Items]
Unvested restricted stock, beginning of period	4,063
Unvested restricted stock, beginning of period (in Dollars per share)	$ 45.98
Granted	706
Granted (in Dollars per share)	$ 69.54
Vested	(836)
Vested (in Dollars per share)	$ 38.32
Forfeited	(22)
Forfeited (in Dollars per share)	$ 53.79
Unvested restricted stock, end of period	3,911
Unvested restricted stock, end of period (in Dollars per share)	$ 51.83

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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-Subparagraph (c)(2)(iii)(3)

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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-Publisher FASB

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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