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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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The cash outflow to purchase long lived physical asset for use in the normal oil and gas operations and to purchase mineral interests in oil and gas properties not intended for resale.

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The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations.

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OIL AND NATURAL GAS PROPERTIES (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
	Apr. 08, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2020
Oil and Natural Gas Properties [Line Items]
Proceeds from the sale of oil and natural gas assets					$ 60	$ 608
Income taxes receivable		$ 59			59		$ 472
Payments to acquire oil and natural gas properties					348	0
Impairment of assets		$ 0	$ 2,689		$ 630	$ 4,326
Barnwell Industries Inc \| Hillsdown, Alberta, Canada
Oil and Natural Gas Properties [Line Items]
Proceeds from the sale of oil and natural gas assets	$ 132
Income taxes receivable	72
Barnwell Industries Inc \| Progress
Oil and Natural Gas Properties [Line Items]
Proceeds from the sale of oil and natural gas assets				$ 594
Barnwell Industries Inc \| North Twining, Alberta, Canada
Oil and Natural Gas Properties [Line Items]
Payments to acquire oil and natural gas properties	$ 348