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Income Taxes (Income Tax Expense Reconciliation) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Income Tax Disclosure [Abstract]
Statutory	$ (1,373)	$ (4,674)	$ (2,920)
State taxes (net of federal tax)	(124)	(799)	(445)
Change in valuation allowance	1,480	6,043	13,989
State rate adjustment	49	(288)	(1,365)
Change in unrecognized tax benefits	(246)	(164)	(282)
Other	5	(63)	30
Income tax expense (benefit)	$ (209)	$ 55	$ 9,007

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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- Definition

The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period.

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- Definition

The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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