XML 20 R29.htm IDEA: XBRL DOCUMENT v3.3.0.814
Plant And Equipment (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]      
Cost $ 5,913 $ 5,903  
Accumulated depreciation and write downs 3,579 3,061  
Net 2,334 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 3,203 2,756  
Net 2,290 2,727  
Guadalupe de los Reyes, Mexico [Member]      
Property, Plant and Equipment [Line Items]      
Cost 17 17  
Accumulated depreciation and write downs 9 8  
Net 8 9  
Corporate United States [Member]      
Property, Plant and Equipment [Line Items]      
Cost 403 403  
Accumulated depreciation and write downs 367 297  
Net $ 36 $ 106