Quarterly report pursuant to Section 13 or 15(d)

Asset Retirement and Reclamation Obligations (Details Textual)

v2.4.0.8
Asset Retirement and Reclamation Obligations (Details Textual) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Asset Retirement Obligation Disclosure [Abstract]  
Estimated Future Cash Undiscounted Amount $ 24.8