XML 17 R39.htm IDEA: XBRL DOCUMENT v2.4.0.8
Mineral Properties - Properties - Capitalized Development Costs (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Notes to Financial Statements    
Development expenditures $ 1,854,000 $ 3,107,000
Capitalized interest 726,000   
Property payments 174,000 325,000
Capitalized depreciation 30,000 22,000
Total capitalized costs $ 2,784,000 $ 3,454,000