CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues:
Revenues	$ 5,527	$ 5,675	$ 17,456	$ 18,425
Costs and expenses:
General and administrative	1,432	1,328	4,217	5,627
Depletion, depreciation, and amortization	1,322	1,257	4,225	2,858
Impairment of assets	599	0	2,276	0
Foreign currency loss (gain)	61	(121)	63	(201)
Interest expense	0	1	2	1
Gain on sale of assets	0	0	0	(551)
Total costs and expenses	6,740	6,553	21,786	19,791
Loss before equity in income of affiliates and income taxes	(1,213)	(878)	(4,330)	(1,366)
Equity in income of affiliates	0	0	1,071	538
Loss before income taxes	(1,213)	(878)	(3,259)	(828)
Income tax provision (benefit)	21	(163)	187	(87)
Net loss	(1,234)	(715)	(3,446)	(741)
Less: Net earnings attributable to non-controlling interests	12	2	236	124
Net loss attributable to Barnwell Industries, Inc.	$ (1,246)	$ (717)	$ (3,682)	$ (865)
Basic net loss per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.12)	$ (0.07)	$ (0.37)	$ (0.09)
Diluted net loss per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.12)	$ (0.07)	$ (0.37)	$ (0.09)
Weighted-average number of common shares outstanding:
Basic (in shares)	10,028,090	9,975,044	10,014,609	9,962,806
Diluted (in shares)	10,028,090	9,975,044	10,014,609	9,962,806
Oil and natural gas
Revenues:
Revenues	$ 4,452	$ 4,503	$ 13,726	$ 13,415
Costs and expenses:
Costs and expenses	2,234	3,006	7,355	7,717
Depletion, depreciation, and amortization	1,293	1,210	4,093	2,724
Impairment of assets	599	0	2,276	0
Contract drilling
Revenues:
Revenues	1,021	1,134	3,084	4,583
Costs and expenses:
Costs and expenses	1,092	1,082	3,648	4,340
Depletion, depreciation, and amortization	28	47	130	133
Sale of interest in leasehold land
Revenues:
Revenues	0	0	500	265
Gas processing and other
Revenues:
Revenues	54	38	146	162
Costs and expenses:
Depletion, depreciation, and amortization	$ 1	$ 0	$ 2	$ 1