XML 23 R30.htm IDEA: XBRL DOCUMENT v3.2.0.727
Plant And Equipment (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]      
Cost $ 5,913 $ 5,903  
Accumulated depreciation and write downs 3,416 3,061  
Net 2,497 2,842  
Mill Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Assets held-for-sale 6,500 6,500 $ 6,500
Mt. Todd, Australia [Member]      
Property, Plant and Equipment [Line Items]      
Cost 5,493 5,483  
Accumulated depreciation and write downs 3,065 2,756  
Net 2,428 2,727  
Guadalupe de los Reyes, Mexico [Member]      
Property, Plant and Equipment [Line Items]      
Cost 17 17  
Accumulated depreciation and write downs 8 8  
Net 9 9  
Corporate, United States [Member]      
Property, Plant and Equipment [Line Items]      
Cost 403 403  
Accumulated depreciation and write downs 343 297  
Net $ 60 $ 106