Income Taxes - Components of Company's Deferred Tax Assets (Detail) - USD ($) |
Dec. 31, 2013 |
Dec. 31, 2012 |
|---|---|---|
| Deferred tax assets: | ||
| Enhanced research and development tax credits | $ 713,029 | $ 751,213 |
| Share-based compensation | 409,391 | 462,976 |
| US federal net operating loss carryforwards | 242,254 | 59,294 |
| US state net operating loss carryforwards | 35,929 | 8,754 |
| Other | 24,781 | 31,726 |
| Total deferred tax assets before valuation allowance | 9,521,260 | 9,147,488 |
| Less valuation allowance | $ (9,521,260) | $ (9,147,488) |
| Net deferred tax assets | ||
| Deferred tax liability: | ||
| Indefinite-lived intangible asset | $ (3,257,910) | $ (3,192,909) |
| Total net deferred tax liability | (3,257,910) | (3,192,909) |
| G B | ||
| Deferred tax assets: | ||
| Net operating loss carryforwards | 7,735,113 | 7,543,489 |
| D E | ||
| Deferred tax assets: | ||
| Net operating loss carryforwards | $ 360,763 | $ 290,036 |
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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 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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- References No definition available.
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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 foreign 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 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 share-based compensation. 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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- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, netted by jurisdiction and classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tax Credits Related To Expenditure On Research And Development No definition available.
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