PROPERTY AND EQUIPMENT AND ASSET RETIREMENT OBLIGATION (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2015	Sep. 30, 2014
Property and equipment
Gross Property and Equipment	$ 75,953	$ 223,023
Accumulated Depletion, Depreciation, and Amortization	(66,485)	(200,673)
Net Property and Equipment	9,468	22,350
Change in the asset retirement obligation
Balance at the beginning of the year	9,163	7,520
Obligations incurred on new wells drilled or acquired	316	105
Liabilities associated with properties sold	(2,013)	(718)
Revision of estimated obligation	918	2,437
Accretion expense	632	624
Payments	(655)	(111)
Foreign currency translation adjustment	(1,425)	(694)
Balance at the end of the year	6,936	9,163
Less current portion	(506)	(978)
Asset retirement obligation, long-term	6,430	8,185
Land
Property and equipment
Gross Property and Equipment	863	863
Net Property and Equipment	863	863
Oil and natural gas properties
Property and equipment
Gross Property and Equipment	63,105	209,702
Accumulated Depletion, Depreciation, and Amortization	(57,460)	(191,478)
Net Property and Equipment	5,645	18,224
Drilling rigs and equipment
Property and equipment
Gross Property and Equipment	6,598	6,759
Accumulated Depletion, Depreciation, and Amortization	(5,825)	(5,754)
Net Property and Equipment	$ 773	$ 1,005
Drilling rigs and equipment \| Minimum
Property and equipment
Estimated useful lives	3 years	3 years
Drilling rigs and equipment \| Maximum
Property and equipment
Estimated useful lives	10 years	10 years
Offices
Property and equipment
Estimated useful lives	40 years	40 years
Gross Property and Equipment	$ 2,420	$ 2,420
Accumulated Depletion, Depreciation, and Amortization	(445)	(384)
Net Property and Equipment	1,975	2,036
Other property and equipment
Property and equipment
Gross Property and Equipment	2,967	3,279
Accumulated Depletion, Depreciation, and Amortization	(2,755)	(3,057)
Net Property and Equipment	$ 212	$ 222
Other property and equipment \| Minimum
Property and equipment
Estimated useful lives	3 years	3 years
Other property and equipment \| Maximum
Property and equipment
Estimated useful lives	17 years	17 years

Amount of asset retirement obligations divested during the period.

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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 210.5-02.14)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Asset Retirement Obligation
-URI http://asc.fasb.org/extlink&oid=6505190

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Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
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Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of the Increase or Decrease in the amount of asset retirement obligations for the period associated with foreign currency translation (to the extent that the entity accounts for the foreign currency effects as a separate component of the change in the liability).

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Amount of asset retirement obligations incurred during the period.

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Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.

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Amount of the Increase or Decrease in the amount of the asset retirement obligation during the current period for changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.13)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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