Income Taxes - Additional Information (Detail) (USD $)
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12 Months Ended | |
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May 31, 2014
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May 31, 2013
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Schedule Of Income Taxes [Line Items] | ||
Federal and state income tax benefit | $ 0 | $ 0 |
Statutory federal income tax rate | 34.00% | 34.00% |
Federal net operating loss and tax credit carryforwards | 30,488,000 | 26,616,000 |
State net operating loss carryforwards | 7,860,000 | 7,380,000 |
State net operating loss carryforwards life expectancy, minimum | 5 years | |
State net operating loss carryforwards life expectancy, maximum | 20 years | |
Interest or penalties related to income tax | 0 | 0 |
Unrecognized tax benefits | $ 0 | $ 0 |
Minimum [Member]
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Schedule Of Income Taxes [Line Items] | ||
Federal net operating loss and tax credit carryforwards life expectancy | 16 years | |
Maximum [Member]
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Schedule Of Income Taxes [Line Items] | ||
Federal net operating loss and tax credit carryforwards life expectancy | 20 years |
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- Definition
Deferred tax assets operating loss carryforwards domestic period. No definition available.
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- Definition
Deferred tax assets operating loss carryforwards state period maximum. No definition available.
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- Definition
Deferred tax assets operating loss carryforwards state period minimum. No definition available.
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- Definition
Federal and state income tax benefit. No definition available.
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- Details
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- 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. 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 state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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