XML 55 R35.htm IDEA: XBRL DOCUMENT v2.4.0.8
Asset Retirement and Reclamation Liabilities (Tables)
12 Months Ended
Dec. 31, 2013
Asset Retirement and Reclamation Liabilities  
Summary of activity in the Velardena Properties ARO

 

 

 

 

December 31,

 

 

 

2013

 

2012

 

 

 

(in thousands)

 

Beginning balance

 

$

2,080

 

$

3,577

 

 

 

 

 

 

 

Changes in estimates, and other

 

203

 

(1,656

)

Accretion expense

 

184

 

159

 

Ending balance

 

$

2,467

 

$

2,080