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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.5(c))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(a)(4))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Name:	us-gaap_IncomeTaxesReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Oct. 31, 2017	Sep. 30, 2017	Sep. 30, 2016
Subsequent Event [Line Items]
Proceeds from sale of oil and natural gas assets			$ 619	$ 493
Income taxes receivable			$ 1,145	$ 378
Pouce Coupe [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from sale of oil and natural gas assets		$ 73
Income taxes receivable		$ 36
Red Earth [Member] [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Purchase and sale agreement price	$ 1,560