Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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-Publisher FASB

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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-Publisher FASB

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.2)

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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.

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Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on cash and cash equivalents.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on cash and cash equivalents.

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Cash, Cash Equivalents and Marketable Securities - Summary of Estimated Fair Value of Cash, Cash Equivalents and Marketable Securities (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 02, 2014	Feb. 01, 2014	Aug. 03, 2013	Feb. 02, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Marketable securities	$ 92,339	$ 98,473
Gross Unrealized Holding Gains, Marketable securities	88	64
Gross Unrealized Holding Losses, Marketable securities	(194)	(191)
Estimated Fair Value, Marketable securities	92,233	98,346
Less: Long-term marketable securities	(825)	(825)
Total current marketable securities	91,408	97,521
Amortized Cost, Cash and cash equivalents	22,037	19,634	19,098	17,579
Gross Unrealized Holding Gains, Cash and cash equivalents
Gross Unrealized Holding Losses, Cash and cash equivalents
Estimated Fair Value, Cash and cash equivalents	22,037	19,634
State and local government securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Marketable securities	75,654	72,968
Gross Unrealized Holding Gains, Marketable securities	88	64
Gross Unrealized Holding Losses, Marketable securities	(194)	(191)
Estimated Fair Value, Marketable securities	75,548	72,841
Amortized Cost, Cash and cash equivalents		450
Gross Unrealized Holding Gains, Cash and cash equivalents
Gross Unrealized Holding Losses, Cash and cash equivalents
Estimated Fair Value, Cash and cash equivalents		450
Variable-rate demand notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Marketable securities	16,685	25,505
Gross Unrealized Holding Gains, Marketable securities
Gross Unrealized Holding Losses, Marketable securities
Estimated Fair Value, Marketable securities	16,685	25,505
Cash [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Cash and cash equivalents	20,480	17,973
Gross Unrealized Holding Gains, Cash and cash equivalents
Gross Unrealized Holding Losses, Cash and cash equivalents
Estimated Fair Value, Cash and cash equivalents	20,480	17,973
Money market funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Cash and cash equivalents	1,557	1,211
Gross Unrealized Holding Gains, Cash and cash equivalents
Gross Unrealized Holding Losses, Cash and cash equivalents
Estimated Fair Value, Cash and cash equivalents	$ 1,557	$ 1,211