CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues:
Revenues	$ 5,675	$ 8,028	$ 18,425	$ 20,161
Costs and expenses:
General and administrative	1,328	1,713	5,627	5,784
Depletion, depreciation, and amortization	1,257	814	2,858	1,915
Interest expense	1	1	1	1
Foreign currency gain	(121)	0	(201)	0
Gain on sale of assets	0	0	(551)	0
Total costs and expenses	6,553	5,797	19,791	16,909
(Loss) earnings before equity in income of affiliates and income taxes	(878)	2,231	(1,366)	3,252
Equity in income of affiliates	0	433	538	3,400
(Loss) earnings before income taxes	(878)	2,664	(828)	6,652
Income tax (benefit) provision	(163)	75	(87)	325
Net (loss) earnings	(715)	2,589	(741)	6,327
Less: Net earnings attributable to non-controlling interests	2	58	124	671
Net (loss) earnings attributable to Barnwell Industries, Inc.	$ (717)	$ 2,531	$ (865)	$ 5,656
Basic net (loss) earnings per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.07)	$ 0.25	$ (0.09)	$ 0.59
Diluted net (loss) earnings per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.07)	$ 0.25	$ (0.09)	$ 0.59
Weighted-average number of common shares outstanding:
Basic (in shares)	9,975,044	9,956,687	9,962,806	9,657,532
Diluted (in shares)	9,975,044	9,956,687	9,962,806	9,657,532
Oil and natural gas
Revenues:
Revenues	$ 4,503	$ 7,292	$ 13,415	$ 16,345
Costs and expenses:
Costs and expenses	3,006	2,397	7,717	6,439
Depletion, depreciation, and amortization	1,210	772	2,724	1,785
Contract drilling
Revenues:
Revenues	1,134	736	4,583	2,430
Costs and expenses:
Costs and expenses	1,082	872	4,340	2,770
Depletion, depreciation, and amortization	47	41	133	129
Land investment
Revenues:
Revenues	0	0	265	1,295
Gas processing and other
Revenues:
Revenues	38	0	162	91
Costs and expenses:
Depletion, depreciation, and amortization	$ 0	$ 1	$ 1	$ 1