Short-term Loan (Narrative) (Details)	Mar. 31, 2022 USD ($)
Current U.S. short-term loan [Member]
Short-term Debt [Line Items]
Short-term loan, monthly payment	$ 102,078
Debt instrument, interest rate, stated percentage	4.65%
Current South African short-term loan [Member]
Short-term Debt [Line Items]
Short-term loan, monthly payment	$ 6,414
Debt instrument, interest rate, stated percentage	3.10%
Various short-term insurance policies in the U.S. [Member]
Short-term Debt [Line Items]
Short-term loan, monthly payment	$ 19,860
Debt instrument, interest rate, stated percentage	4.35%