Note 7. Composition of Certain Financial Statement Captions (Detail) - Software, Equipment and Leasehold Improvements (USD $) In Thousands, unless otherwise specified	3 Months Ended
May 04, 2013	Feb. 02, 2013
Property, plant and equipment balances	$ 55,400	$ 53,339
Less: Accumulated depreciation and amortization	(38,975)	(36,233)
Total software, equipment and leasehold improvements, net	16,425	17,106
Software [Member]
Estimated Useful Lives (Years)	2 years
Property, plant and equipment balances	25,342	24,216
Equipment [Member]
Property, plant and equipment balances	18,404	17,688
Equipment [Member] \| Minimum [Member]
Estimated Useful Lives (Years)	2 years
Equipment [Member] \| Maximum [Member]
Estimated Useful Lives (Years)	5 years
Office Equipment [Member]
Estimated Useful Lives (Years)	2 years
Property, plant and equipment balances	8,510	8,338
Leasehold Improvements [Member]
Property, plant and equipment balances	$ 3,144	$ 3,097
Leasehold Improvements [Member] \| Minimum [Member]
Estimated Useful Lives (Years)	1 year
Leasehold Improvements [Member] \| Maximum [Member]
Estimated Useful Lives (Years)	6 years

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References+ Details

Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details

- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details