Income Taxes - Difference in Actual Income Tax Expense Computed by Applying the Statutory Federal Income Tax Rate to Loss Before Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Computed tax (benefit) at 21%	$ (3,586,925)	$ (4,379,719)
State taxes, net of federal benefit	(1,177,951)	(832,055)
Stock-based compensation	240,177	310,811
Foreign tax rate differential	(2,171)	3,685
Return to provision	53,340	26,120
Nontaxable loan forgiveness	(360,570)
Other	9,048	31,850
Uncertain tax position adjustment for prior periods	(6,395)	(5,694)
Increase in valuation allowance	5,331,692	5,276,244
Total income tax expense	22,475	14,415
State
Income Tax Disclosure [Line Items]
Research and development tax credit	(265,362)	(218,991)
Federal
Income Tax Disclosure [Line Items]
Research and development tax credit	$ (212,408)	$ (197,836)