Income Taxes (Detail) - Components of Deferred Tax Assets and Liabilities (USD $)
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Dec. 31, 2011
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Dec. 31, 2010
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Deferred tax assets (liabilities): | ||
Property and equipment | $ (144,185) | $ (193,617) |
Deferred revenue | 1,517,024 | 2,503,984 |
Accrued expenses | 1,138,800 | 1,518,400 |
Other | 727,207 | 297,309 |
Net operating loss carryforwards | 18,509,210 | 14,758,835 |
[DeferredTaxAssetsLiabilitiesGross] | 21,748,056 | 18,884,911 |
Less valuation allowance | $ (21,748,056) | $ (18,884,911) |
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Deferred Tax Assets and Liabilities Valuation Allowance
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