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Income Taxes (Details Textual) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 36us-gaap_UnrecognizedTaxBenefits	$ 52us-gaap_UnrecognizedTaxBenefits	$ 106us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits that would favorably impact effective tax rate	24us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Liability for interest and penalties related to unrecognized tax benefits	6us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	16us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Unrecognized tax benefit amount that is reasonably possible to decrease	8us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit
Valuation allowance	26,399us-gaap_DeferredTaxAssetsValuationAllowance	24,210us-gaap_DeferredTaxAssetsValuationAllowance
Federal net operating loss carryforward	26,340us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic
State net operating loss carryforward	$ 54,332us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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