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MIneral Property - Mineral Property Exploration Expense (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Notes to Financial Statements
Geologic and field expenses	$ 28,000	$ 432,000	$ 521,000	$ 1,003,000
Administrative	48,000	81,000	253,000	274,000
Mt. Hamilton exploration and development		(6,000)		308,000
Total exploration costs	$ 76,000	$ 507,000	$ 774,000	$ 1,585,000