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Effective income tax rate reconciliation, interest expense.

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Effective income tax rate reconciliation, interest expense, percentage.

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Effective income tax rate reconciliation, unearned revenue, percentage.

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

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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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Schedule of Tax Benefit and Effective Income Tax (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Liquidated Damages
Federal benefit expected at statutory rate					$ (18,694,437)	$ (12,188,924)
Federal benefit expected at statutory rate, percentage					21.00%	21.00%
State and local taxes, net of federal benefit					$ (5,279,879)	$ (3,053,709)
State and local taxes, net of federal benefit, percentage					5.90%	5.30%
Stock-based compensation					$ 1,768,735	$ 1,591,202
Stock based compensation, percentage					(2.00%)	(2.70%)
Unearned revenue					$ (5,120,330)	$ (1,969,056)
Unearned revenue, percentage					5.80%	3.40%
Interest expense					$ 1,173,535	$ 1,015,199
Interest expense, percentage					(1.30%)	(1.70%)
Other differences, net					$ 152,294	$ 199,643
Other differences, net, percentage					(0.20%)	(0.40%)
Valuation allowance					$ 26,168,671	$ (6,685,348)
Valuation allowance, percentage					(29.40%)	11.50%
Other permanent differences					$ 42,243	$ 1,549,866
Other permanent differences, percentage					0.00%	(2.70%)
Tax provision (benefit) and effective income tax rate	$ (229,699)		$ (229,699)		$ 210,832	$ (19,541,127)
Tax provision (benefit) and effective income tax rate, percentage			0.29%	0.00%	(0.20%)	33.70%