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Exploration Expense - (Details) (USD $)	3 Months Ended		9 Months Ended
Exploration Expense - (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Notes to Financial Statements
Geologic and field expenses	$ 432	$ 623	$ 1,003	$ 1,231
Administrative	81	76	274	210
Mt. Hamilton exploration	(6)	1,025	308	2,045
Total exploration costs	$ 507	$ 1,724	$ 1,585	$ 3,486