Mineral Rights - Schedule of Mineral Properties (Details) - USD ($)	Jul. 31, 2017	Apr. 30, 2017
Total	$ 4,120,623	$ 4,120,623
Copper King Project [Member]
Total	3,091,738	3,091,738
Keystone Project [Member]
Total	$ 1,028,885	$ 1,028,885

Carrying amount at the balance sheet date of mineral rights, or rights to extract a mineral from the earth or to receive payment in the form of a royalty for the extraction of minerals, net of amortization.

No definition available.

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