INCOME TAXES - Summary of income tax effects to deferred tax assets and liabilities (Details) - USD ($)	Sep. 30, 2023	Sep. 30, 2022
Deferred tax liabilities
Property and equipment	$ 8,141,025	$ 7,686,064
Other	588,632	7,632
Total deferred tax liabilities	8,729,657	7,693,696
Deferred income tax assets
Other	948,704	404,093
Net operating loss carryforward	910,443	2,834,524
Total deferred tax assets	1,859,147	3,238,617
Total net deferred tax liabilities	$ 6,870,510	$ 4,455,079