CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Revenues:
Revenues	$ 25,269	$ 28,545
Costs and expenses:
General and administrative	6,956	8,044
Depletion, depreciation, and amortization	4,457	2,778
Impairment of assets	0	89
Foreign currency (gain) loss	(76)	484
Interest expense	2	1
Gain on sale of assets	(551)	0
Total costs and expenses	26,891	25,426
(Loss) earnings before equity in income of affiliates and income taxes	(1,622)	3,119
Equity in income of affiliates	758	3,400
(Loss) earnings before income taxes	(864)	6,519
Income tax (benefit) provision	(53)	347
Net (loss) earnings	(811)	6,172
Less: Net earnings attributable to non-controlling interests	150	659
Net (loss) earnings attributable to Barnwell Industries, Inc. stockholders	$ (961)	$ 5,513
Basic net (loss) earnings per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.10)	$ 0.57
Diluted net (loss) earnings per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.10)	$ 0.57
Weighted-average number of common shares outstanding:
Basic (in shares)	9,969,856	9,732,936
Diluted (in shares)	9,969,856	9,732,936
Oil and natural gas
Revenues:
Revenues	$ 19,376	$ 22,581
Costs and expenses:
Costs and expenses	10,434	9,439
Depletion, depreciation, and amortization	4,269	2,606
Contract drilling
Revenues:
Revenues	5,427	4,540
Costs and expenses:
Costs and expenses	5,669	4,591
Depletion, depreciation, and amortization	186	171
Sale of interest in leasehold land
Revenues:
Revenues	265	1,295
Costs and expenses:
Impairment of assets	0	89
Gas processing and other
Revenues:
Revenues	201	129
Costs and expenses:
Depletion, depreciation, and amortization	$ 2	$ 1