PROPERTY AND EQUIPMENT AND ASSET RETIREMENT OBLIGATION (Details) - USD ($) $ in Thousands	1 Months Ended			12 Months Ended
	Aug. 31, 2023	Jan. 31, 2022	Jul. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Property and equipment
Proved Properties, Net Property and Equipment				$ 13,232	$ 2,423
Unproved Properties, Net Property and Equipment				0	962
Net drilling rigs and other property and equipment				369	490
Total Gross Property and Equipment				74,806	67,412
Total Accumulated Depletion, Depreciation, Amortization, and Impairment				(61,205)	(63,537)
Total Net Property and Equipment				13,601	3,875
Oil and natural gas properties, full cost method of accounting:
Unproved properties				0	962
Accumulated depletion, depreciation, and impairment				(54,651)	(56,067)
Total oil and natural gas properties, net				13,232	3,385
Gain on sale of corporate office				0	1,982
Change in the asset retirement obligation
Balance at the beginning of the year				7,053	6,194
Obligations incurred on new wells drilled or acquired				1,682	532
Liabilities associated with properties sold				(483)	(375)
Revision of estimated obligation				1,021	279
Accretion expense				767	580
Payments				(942)	(421)
Foreign currency translation adjustment				(642)	264
Balance at the end of the year				8,456	7,053
Less current portion				(1,327)	(713)
Asset retirement obligation, long-term				7,129	6,340
Abandonment and reclamation cost, cash deposit			$ 888		1,525
Increase (decrease) in asset retirement obligation					213
Abandonment and reclamation cost, cumulative cash deposit reduction				$ (113)
Twining, Alberta, Canada | Barnwell Industries Inc
Change in the asset retirement obligation
Obligations incurred on new wells drilled or acquired		$ 1,500
Forecast
Change in the asset retirement obligation
Abandonment and reclamation cost, cash deposit	$ 637
Minimum
Change in the asset retirement obligation
Discount rate for ARO				6.00%
Maximum
Change in the asset retirement obligation
Discount rate for ARO				13.50%
Oil and natural gas properties
Property and equipment
Proved Properties, Gross Property and Equipment				$ 67,883	58,490
Proved Properties, Accumulated Depletion, Depreciation, Amortization, and Impairment				(54,651)	(56,067)
Proved Properties, Net Property and Equipment				13,232	2,423
Unproved Properties, Gross Property and Equipment				0	962
Unproved Properties, Accumulated Depletion, Depreciation, Amortization, and Impairment				0	0
Unproved Properties, Net Property and Equipment				0	962
Oil and natural gas properties, full cost method of accounting:
Proved Properties				67,883	58,490
Total oil and natural gas properties, gross				67,883	59,452
Total oil and natural gas properties, net				13,232	3,385
Change in the asset retirement obligation
Oil and Gas Property, Full Cost Method, Depletion				(54,651)	(56,067)
Drilling rigs and equipment
Property and equipment
Gross Property and Equipment				6,304	7,273
Accumulated Depletion, Depreciation, Amortization, and Impairment				(5,943)	(6,789)
Net drilling rigs and other property and equipment				$ 361	$ 484
Drilling rigs and equipment | Minimum
Property and equipment
Estimated useful lives				3 years	3 years
Drilling rigs and equipment | Maximum
Property and equipment
Estimated useful lives				10 years	10 years
Other property and equipment
Property and equipment
Gross Property and Equipment				$ 619	$ 687
Accumulated Depletion, Depreciation, Amortization, and Impairment				(611)	(681)
Net drilling rigs and other property and equipment				$ 8	$ 6
Other property and equipment | Minimum
Property and equipment
Estimated useful lives				3 years	3 years
Other property and equipment | Maximum
Property and equipment
Estimated useful lives				10 years	10 years
Office
Oil and natural gas properties, full cost method of accounting:
Gain on sale of corporate office					$ 1,164
Proceeds from sale of corporate office					$ 1,864