SUPPLEMENTARY OIL AND NATURAL GAS INFORMATION (UNAUDITED) - RESULTS OF OPERATIONS FOR OIL AND NATURAL GAS PRODUCING ACTIVITIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Results of Operations for Oil and Natural Gas Producing Activities
Net revenues	$ 17,396	$ 19,376
Production costs	(9,849)	(10,434)
Depletion	(4,947)	(4,269)
Impairment of assets	(2,885)
Pre-tax results of operations	(285)	4,673
Estimated income tax expense	340	151
Results of operations	(625)	4,522
Canada
Results of Operations for Oil and Natural Gas Producing Activities
Net revenues	15,093	16,630
Production costs	(9,230)	(9,859)
Depletion	(4,139)	(3,600)
Impairment of assets	(2,164)
Pre-tax results of operations	(440)	3,171
Estimated income tax expense	320	107
Results of operations	(760)	3,064
United States
Results of Operations for Oil and Natural Gas Producing Activities
Net revenues	2,303	2,746
Production costs	(619)	(575)
Depletion	(808)	(669)
Impairment of assets	(721)
Pre-tax results of operations	155	1,502
Estimated income tax expense	20	44
Results of operations	$ 135	$ 1,458