The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Nature of operations (Narrative) (Details)	Jun. 19, 2015	Jan. 11, 2010	Mar. 23, 2004
Interest Option Held			51.00%
Ambler Property [Member]
Mineral property acquisition		100.00%
Sunward Resources Ltd. [Member]
Mineral property acquisition	100.00%