Other Assets (Details) - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Other Assets
Intangible assets, net of accumulated amortization of $551,037 at September 30, 2019 and $531,637 at September 30, 2018	$ 49,200	$ 68,600
Other non-current assets	104,841	113,393
Total other assets	154,041	181,993
Accumulated amortization of intangible assets	551,037	531,637
Impairment charges	0	0	$ 0
Intangible asset amortization expense	19,400	0	$ 2,600
Prepaid software licenses	$ 29,500	$ 38,100