CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,209	$ 1,340
Other comprehensive (loss) income:
Foreign currency translation adjustments, net of taxes of $0	2	(25)
Retirement plans:
Amortization of accumulated other comprehensive gain into net periodic benefit cost, net of taxes of $0	(20)	0
Total other comprehensive loss	(18)	(25)
Total comprehensive income	1,191	1,315
Less: Comprehensive income attributable to non-controlling interests	(120)	(267)
Comprehensive income attributable to Barnwell Industries, Inc.	$ 1,071	$ 1,048