Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2013	Feb. 29, 2012
Deferred tax assets and liabilities
Sales returns	$ 263	$ 325
Inventory and accounts receivable	794	1,137
Accrued liabilities	117	168
Intangibles	507	526
Credits	400
Fixed assets	438	609
Stock-based compensation	439	400
Other	9	14
Net operating losses	19,522	17,374
Total deferred tax assets	22,489	20,553
Less valuation allowance	(22,489)	(20,553)
Total

Deferred tax assets inventory and accounts receivable.

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Deferred tax assets sales returns.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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

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Amount before allocation of valuation allowances of deferred tax asset attributable to other deductible tax carryforwards not separately disclosed.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.

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The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities.

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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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