7. LEASES - Lease costs (Details) - USD ($)		3 Months Ended		6 Months Ended
		Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Operating lease cost (1)	[1]	$ 83,237	$ 152,848	$ 166,475	$ 189,006
Amortization of right-of-use assets		94,815	90,981	189,630	112,729
Interest on lease obligations		$ 10,125	$ 14,645	$ 21,512	$ 18,223

[1] Included in general and administrative expenses