Summary of Significant Accounting Policies - UK (Details)	9 Months Ended
	Sep. 30, 2021 USD ($)
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Balance, Beginning balance	$ 434,238
UK research and development incentives, Q1 2021	70,003
Additional 2019 incentive earned	51,893
UK research and development incentives cash receipt	(383,933)
Foreign currency translation	(646)
Balance, Ending balance	171,555
Current
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Balance, Beginning balance	361,096
UK research and development incentives, transfer	73,142
Additional 2019 incentive earned	51,893
UK research and development incentives cash receipt	(383,933)
Foreign currency translation	1,575
Balance, Ending balance	103,773
Long-term
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Balance, Beginning balance	73,142
UK research and development incentives, transfer	(73,142)
UK research and development incentives, Q1 2021	70,003
Foreign currency translation	(2,221)
Balance, Ending balance	$ 67,782