Fair Value Measurement (Details 2) (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Amortized Cost
Mature in one year or less	$ 18,218	$ 12,771
Mature after one year through five years	20,052	5,754
Total	38,270	18,525
Fair Market Value
Mature in one year or less	18,226	12,819
Mature after one year through five years	20,066	5,760
Total Fair Market Value	38,292	18,579
Changes among the fair value levels
Changes between Level 1 to Level 2, Assets	0
Changes between Level 2 to Level 1, Assets	0
Changes between Level 1 to Level 2, Liabilities	0
Changes between Level 2 to Level 1, Liabilities	$ 0

Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Amount of held-to-maturity debt securities at fair value maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year.

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Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, maturing in the next fiscal year through the fifth fiscal year following the latest fiscal year.

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Amount of held-to-maturity debt securities at fair value maturing in the next fiscal year following the latest fiscal year.

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This item represents the aggregate fair value of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity.

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