Income Taxes - Schedule of Deferred Tax Assets (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Net operating loss carryforwards	$ 35,714,104	$ 31,575,288
Capital loss carryforwards	7,298,024	7,298,052
Start-up costs	11,234,623	11,234,751
Accruals and reserves	397,982	166,611
Intellectual property amortization	2,285,247	555,352
Stock-based compensation expense	1,290,212	1,123,100
Tax credits	2,541,244	1,926,677
Lease liability	125,266	96,895
Total deferred tax assets	60,886,702	53,976,726
Valuation allowance	(60,761,412)	(53,877,168)
Deferred tax assets, net of allowance	125,290	99,558
Deferred tax liabilities:
Lease right-of-use assets	(125,290)	(99,558)
Net deferred tax assets	$ 0	$ 0