LOSS PER COMMON SHARE (Tables)

12 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Reconciliations between net earnings (loss) attributable to stockholders and common shares outstanding of the basic and diluted net earnings (loss) 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 tables:

	Year ended September 30, 2020
	Net Loss		Shares	Per-Share
	(Numerator)		(Denominator)	Amount
Basic net loss per share	$	(4,756,000)	8,277,160	$	(0.57)
Effect of dilutive securities - common stock options	—		—
Diluted net loss per share	$	(4,756,000)	8,277,160	$	(0.57)
	Year ended September 30, 2019
	Net Loss		Shares	Per-Share
	(Numerator)		(Denominator)	Amount
Basic net loss per share	$	(12,414,000)	8,277,160	$	(1.50)
Effect of dilutive securities - common stock options	—		—
Diluted net loss per share	$	(12,414,000)	8,277,160	$	(1.50)