Other Financial Information (Details) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2013	Jan. 31, 2012
Summary of property and equipment
Property and Equipment, Gross	$ 16,198	$ 17,964
Less: accumulated depreciation	(11,884)	(13,085)
Property and Equipment, Net	4,314	4,879
Computers and equipment [Member]
Summary of property and equipment
Property and Equipment, Gross	9,631	10,273
Furniture and fixtures [Member]
Summary of property and equipment
Property and Equipment, Gross	$ 6,567	$ 7,691

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.

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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.

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- 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.

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