Note 4 - Investment Securities - Investment Securities (Details) - USD ($)	Aug. 29, 2015	Feb. 28, 2015
Available-for-sale securities:
Available-for-sale Securities, Current	$ 28,900,000	$ 0
Long term	19,200,000	47,900,000
Trading securities:
Deferred Compensation Plan Assets	$ 51,300,000	49,200,000
Held-to-maturity securities:
Short term		110,000,000
Total investment securities	$ 99,400,000	$ 207,100,000

No definition available.

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Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

+ References

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-Publisher FASB

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-Section 25

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Equity securities categorized neither as held-to-maturity nor trading which are intended be sold more than one year from the balance sheet date or operating cycle, if longer.

+ References

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Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

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-Publisher FASB

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-Topic 210

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle.

+ References

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

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Sum of the carrying amounts as of the balance sheet date of all investments.

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-Publisher FASB

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-Topic 944

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