OPERATING LEASES - Lease expense (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Leases.
Operating lease expense	$ 17,495	$ 44,444	$ 79,434	$ 133,332
Short-term lease expense	34,828	2,400	69,659	6,600
Total lease expense	$ 52,323	$ 46,844	$ 149,093	$ 139,932