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EXPLORATION EXPENDITURES (Tables)

12 Months Ended

Jun. 30, 2017

Oil and Gas Exploration and Production Industries Disclosures [Abstract]

Schedule of exploration expenditures

		For the year ended June 30,
		2017				2016				2015
Feasibility study and engineering		$	5,797			$	2,671			$	5,892
Field management and other			811				940				1,791
Drilling			—				197				4,976
Metallurgical			2,209				844				4,506
Geologists and field staff			110				67				886
Total		$	8,927			$	4,719			$	18,051

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- Definition

Tabular disclosure of the aggregate of costs (whether the costs are capitalized or charged to expense at the time they are incurred ) incurred for the year in oil and gas property acquisition, exploration and development activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 55
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=34713648&loc=d3e63042-109448

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
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-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62038-109447

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62014-109447

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

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