Income Taxes - The tax effect of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities (Details) (USD $)
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Apr. 30, 2013
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Apr. 30, 2012
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Deferred tax assets: | ||
Compensated absences and severance, principally due to accruals for financial reporting purposes | $ 150,000 | $ 99,000 |
Stock-based compensation expense | 1,259,000 | 1,202,000 |
Accounts receivable, principally due to allowance for doubtful accounts and sales returns | 78,000 | 78,000 |
Property and equipment, principally due to differences in depreciation | 106,000 | 253,000 |
Intangible assets | 464,000 | 360,000 |
Inventories | 91,000 | 88,000 |
Domestic net operating losses | 9,089,000 | 7,491,000 |
Alternative minimum tax | 438,000 | 438,000 |
Other | 61,000 | 66,000 |
Deferred tax assets | 11,736,000 | 10,075,000 |
Valuation allowance | (11,736,000) | (10,075,000) |
Net deferred tax assets | $ 0 | $ 0 |
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill. No definition available.
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. No definition available.
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from severance costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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