Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($) |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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Deferred tax assets: | |||
Research and development tax credits | $ 7,390,441 | $ 5,994,401 | |
Net operating loss carryovers | 47,460,988 | 36,578,319 | |
Property and equipment | 241,000 | 144,833 | |
Research and development costs | 15,083,114 | 16,303,445 | |
Start-up and organizational costs | 618 | 696 | |
Stock-based compensation | 3,420,667 | 4,000,781 | |
Operating lease liability | 594,507 | ||
Other accruals | 276,512 | 326,812 | |
Total gross deferred tax assets | 74,467,847 | 63,349,287 | |
Less: valuation allowance | (73,892,063) | (63,349,287) | $ (46,171,964) |
Total deferred tax assets | 575,784 | ||
Deferred tax liabilities: | |||
Operating lease right-of-use asset | (575,784) | ||
Total deferred tax liabilities | (575,784) | ||
Total deferred taxes, net | $ 0 | $ 0 |
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- References No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from in-process research and development costs expensed in connection with a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 research tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Deferred tax assets, leasing arrangements. No definition available.
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- Definition Deferred tax assets, start up and organizational costs. No definition available.
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