Income Taxes - Provisions for Income Taxes (Detail) - USD ($)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
State:
Current	$ 2,400	$ 173,553
Total State	2,400	173,553
Provision from income taxes	$ 2,400	$ 173,553	$ 2,400