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10. Income Taxes (Detail) (USD $)	3 Months Ended		9 Months Ended
10. Income Taxes (Detail) (USD $)	Oct. 30, 2011	Oct. 31, 2010	Oct. 30, 2011	Oct. 31, 2010
Income Tax Expense (Benefit)	$ 563,000	$ 522,000	$ 1,716,000	$ 1,601,000
Effective Income Tax Rate, Continuing Operations	20.00%	30.80%	27.90%	31.90%
Income Tax Expense (Benefit)			$ 1,700,000	$ 1,600,000

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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