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Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2015
Summary of Significant Accounting Policies [Abstract]  
Mineral properties
Our carrying balance in the Mt. Emmons property at June 30, 2015 and December 31, 2014 is as follows:

     
  
(In thousands)
 
  
June 30,
  
December 31,
 
  
2015
  
2014
 
Costs associated with Mount Emmons
    
 beginning of year
 
$
21,942
  
$
20,739
 
Property purchase (1)
  
--
   
1,203
 
Costs at the end of the period
 
$
21,942
  
$
21,942
 

(1)On January 21, 2014, the Company acquired Thompson Creek Metals' ("TCM") 50% interest in 160 acres of fee land in the vicinity of the Mt. Emmons project mining claims for $1.2 million.  The property was originally acquired jointly by the Company and TCM in January 2009.
Components of property and equipment
Components of Property, Plant and Equipment as of June 30, 2015 and December 31, 2014 are as follows:

     
  
(In thousands)
 
  
June 30,
  
December 31,
 
  
2015
  
2014
 
 Property, plant and equipment
 
$
8,320
  
$
8,346
 
 Less accumulated depreciation
  
(4,509
)
  
(4,404
)
 Net book value
 
$
3,811
  
$
3,942