CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net (loss) earnings	$ (94)	$ (514)	$ (465)	$ 1,046
Other comprehensive (loss) income:
Foreign currency translation adjustments, net of taxes of $0	(76)	81	(263)	33
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	30	51	93	244
Total other comprehensive (loss) income	(46)	132	(170)	277
Total comprehensive (loss) income	(140)	(382)	(635)	1,323
Less: Comprehensive income (loss) attributable to non-controlling interests	280	(2)	247	532
Comprehensive (loss) income attributable to Barnwell Industries, Inc.	$ (420)	$ (380)	$ (882)	$ 791

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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