Litigation and Other Events (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Feb. 28, 2010	Oct. 14, 2009 m	Dec. 05, 2011 Rochester [Member] acre claims
Litigation and Other Events (Textual) [Abstract]
Settlement Amount Under Law	$ 3.5
Maximum height for temporary restriction on mining		4,400
Litigation and Other Events (Additional) (Textual)
Number of Unpatented Mining Claims			447
Approximate Area of Federal Lands Covering for Unpatented Mining Claims			8,600