CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenues:
Revenues	$ 6,155	$ 7,511
Costs and expenses:
General and administrative	1,404	2,249
Depletion, depreciation, and amortization	1,511	840
Foreign currency gain	(126)	(78)
Interest expense	2	0
Gain on sale of assets	0	(551)
Total costs and expenses	6,751	6,761
(Loss) earnings before equity in income of affiliates and income taxes	(596)	750
Equity in income of affiliates	0	538
(Loss) earnings before income taxes	(596)	1,288
Income tax provision	66	79
Net (loss) earnings	(662)	1,209
Less: Net earnings attributable to non-controlling interests	2	120
Net (loss) earnings attributable to Barnwell Industries, Inc.	$ (664)	$ 1,089
Basic net (loss) earnings per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.07)	$ 0.11
Diluted net (loss) earnings per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.07)	$ 0.11
Weighted-average number of common shares outstanding:
Basic (in shares)	9,996,760	9,956,687
Diluted (in shares)	9,996,760	9,956,687
Oil and natural gas
Revenues:
Revenues	$ 5,130	$ 5,226
Costs and expenses:
Costs and expenses	2,791	2,444
Depletion, depreciation, and amortization	1,458	796
Contract drilling
Revenues:
Revenues	993	1,948
Costs and expenses:
Costs and expenses	1,169	1,857
Depletion, depreciation, and amortization	52	43
Sale of interest in leasehold land
Revenues:
Revenues	0	265
Gas processing and other
Revenues:
Revenues	32	72
Costs and expenses:
Depletion, depreciation, and amortization	$ 1	$ 1