Income Taxes - Schedule of Reconciliation of Tax Provision with Expected Provision (Detail) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Benefit on net loss	$ (1,469,827)	$ (808,436)	$ 2,458,947	$ (948,111)
Nondeductible expenses	1,525	1,054	3,063
Valuation allowance (expense)	1,480,921	$ 807,382	(2,432,127)	$ 947,057
Income tax (reduction) benefit	$ 12,619		$ 29,883
Benefit on net loss	26.90%	29.40%	24.50%	25.30%
Nondeductible expenses, percentage	0.00%	0.00%	0.00%	0.00%
Valuation allowance (expense), percentage	(27.10%)	(29.30%)	(24.30%)	(25.30%)
Other items, percentage	0.00%	0.00%	0.00%	0.00%
Tax benefit/effective rate	(0.20%)	(0.10%)	(0.20%)

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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