Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Pay vs Performance Disclosure
Net loss attributable to Barnwell Industries, Inc.	$ (1,550)	$ (1,246)	$ (4,674)	$ (3,682)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details