OIL AND NATURAL GAS PROPERTIES (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Oil and Natural Gas Properties [Line Items]
Proceeds from sale of oil and natural gas assets	$ 594	$ 633
Impairment of assets	0	2,170
Future capital expenditure, development of proved undeveloped reserves, over next five yearsp	12,000
Wood River and Twining
Oil and Natural Gas Properties [Line Items]
Acquisition costs		$ 355
Barnwell Industries Inc \| Progress
Oil and Natural Gas Properties [Line Items]
Proceeds from sale of oil and natural gas assets	$ 594

Future Capital Expenditure, Development Of Proved Undeveloped Reserves, Over Next Five Years

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
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- Definition

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.

+ References

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-Publisher FASB
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