Revenue from Contracts with Customers (Revenue by Geographic Area) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 4,135,301	$ 6,585,967	$ 6,276,027	$ 9,093,761
United States [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,237,629	4,787,258	2,593,718	5,596,635
South Africa [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,177,200	1,328,400	1,177,200	1,329,678
Mozambique [Member]
Disaggregation of Revenue [Line Items]
Revenues	855,360		855,360
Other Countries [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 865,112	$ 470,309	$ 1,649,749	$ 2,167,448