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MIneral Property - Mineral Property Capitalized Development (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Notes to Financial Statements
Development expenditures	$ 601,000	$ 1,448,000	$ 1,369,000	$ 2,211,000
Capitalized interest	184,000		557,000
Property payments	75,000	50,000	175,000	325,000
Capitalized depreciation	7,000	12,000	23,000	18,000
Total capitalized costs	$ 867,000	$ 1,510,000	$ 2,124,000	$ 2,554,000