LOSS PER COMMON SHARE (Tables)

9 Months Ended

Jun. 30, 2025

Earnings Per Share [Abstract]

Reconciliations between net (loss) earnings attributable to the entity's stockholders and common shares outstanding of the basic and diluted net (loss) earnings per share computations

Reconciliations between net loss attributable to Barnwell stockholders and common shares outstanding of the basic and diluted net loss per share computations are detailed in the following table:

	Three months ended June 30,				Nine months ended June 30,
	2025		2024		2025		2024
Numerator:
Net loss from continuing operations	$	(1,553,000)	$	(1,006,000)	$	(4,691,000)	$	(2,438,000)
Less: Net (loss) earnings attributable to non-controlling interests of continuing operations	(3,000)		12,000		(5,000)		236,000
Net loss from continuing operations attributable to Barnwell Industries, Inc.	(1,550,000)		(1,018,000)		(4,686,000)		(2,674,000)
Net (loss) earnings from discontinued operations	—		(228,000)		12,000		(1,008,000)
Net loss attributable to Barnwell Industries, Inc.	$	(1,550,000)	$	(1,246,000)	$	(4,674,000)	$	(3,682,000)
Denominator:
Basic weighted-average number of common shares outstanding	10,053,534		10,028,090		10,051,390		10,014,609
Effect of dilutive securities - common stock options and restricted stock units	—		—		—		—
Diluted weighted-average number of common shares outstanding	10,053,534		10,028,090		10,051,390		10,014,609
Basic and diluted loss per common share:
Net loss per common share from continuing operations attributable to Barnwell Industries, Inc. stockholders	$	(0.15)	$	(0.10)	$	(0.47)	$	(0.27)
Net loss per common share from discontinued operations	—		(0.02)		—		(0.10)
Net loss per common share attributable to Barnwell Industries, Inc. stockholders	$	(0.15)	$	(0.12)	$	(0.47)	$	(0.37)