Debt - Schedule of interest expense (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt Disclosure [Abstract]
Related party interest expense – stated rate	$ 44,086	$ 44,087	$ 130,824	$ 117,459
PPP loan interest expense – stated rate	0	294	445	511
Non-cash interest expense:
Amortization of debt discount	150,852	137,849	437,834	401,507
Amortization of transaction costs	420	384	1,219	1,117
Interest expense	$ 195,358	$ 182,614	$ 570,322	$ 520,594