SUBSEQUENT EVENT	3 Months Ended
Dec. 31, 2017
Subsequent Events [Abstract]
SUBSEQUENT EVENT	SUBSEQUENT EVENT In February 2018, Barnwell closed on the sale of its oil properties located in the Red Earth area of Alberta, Canada (See Note 5 for additional details).

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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