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Asset Retirement Obligation and Reclamation Liabilities (Tables)
 12 Months Ended
Dec. 31, 2016
Asset Retirement Obligation and Reclamation Liabilities  
Summary of activity in the Velardena Properties ARO

 

 

 

 

 

 

 

 

 

 

Year Ended

 

 

 

December 31,

 

 

    

2016

    

2015

 

 

 

(in thousands)

 

Beginning balance

 

$
2,480

 

$
2,582

 

 

 

 

 

 

 

 

 

Changes in estimates, and other

 

 
(293)

 

 
(300)

 

Accretion expense

 

 
193

 

 
198

 

Ending balance

 

$
2,380

 

$
2,480