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Income Taxes (Details 2)
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12 Months Ended | ||
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Jan. 31, 2013
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Jan. 31, 2012
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Jan. 31, 2011
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| Reconciliation of the statutory federal rate and the company's effective tax rate | |||
| U.S. federal taxes at statutory rate (as a percent) | 34.00% | 34.00% | 34.00% |
| State taxes, net of federal benefit (as a percent) | 15.00% | ||
| Permanent differences (as a percent) | (2.00%) | (24.00%) | (55.00%) |
| Foreign rate differential (as a percent) | (2.00%) | ||
| Federal and state credits (net of reserve) (as a percent) | 2.00% | 2.00% | 7.00% |
| Change in valuation allowance (as a percent) | (30.00%) | (16.00%) | 86.00% |
| Change in rate (as a percent) | (2.00%) | 1.00% | (93.00%) |
| Other (as a percent) | 3.00% | (2.00%) | |
| Effective tax rate (as a percent) | 0.00% | 0.00% | (8.00%) |
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by federal and state credits net of reserve generated or utilized under enacted tax laws during the period. No definition available.
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- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 that is attributable to changes in the income tax laws or rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the difference between statutory income tax rates in foreign jurisdictions and the domestic federal statutory income tax rate recorded during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The sum of the differences between the effective income tax rate and domestic federal statutory income tax rate attributable to all nondeductible expenses under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense or benefit, net of the federal tax benefit (expense) thereon, recorded during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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