XML 109 R41.htm IDEA: XBRL DOCUMENT v2.4.0.6
Mineral Properties (Schedule Of Business Acquisitions By Acquisition) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 132 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Dec. 31, 2012
Long Valley, United States [Member]
Dec. 31, 2011
Long Valley, United States [Member]
Dec. 31, 2012
Los Cardones, Mexico [Member]
Dec. 31, 2012
Guadalupe de los Reyes, Mexico [Member]
Dec. 31, 2011
Guadalupe de los Reyes, Mexico [Member]
Dec. 31, 2012
Awak Mas, Indonesia [Member]
Dec. 31, 2012
Mt. Todd, Australia [Member]
Dec. 31, 2011
Mt. Todd, Australia [Member]
Business Acquisition [Line Items]                    
Mineral properties net, Beginning balance $ 16,517   $ 750 $ 750 $ 10,303 $ 2,752 $ 2,752 $ 566 $ 2,146 $ 2,146
Cost recovery (2,566)       (2,000)     (566)    
Write-down of mineral property (250) (250)     (250)     (250)    
Mineral properties net, Ending balance $ 13,701 $ 13,701 $ 750 $ 750 $ 8,053 $ 2,752 $ 2,752   $ 2,146 $ 2,146