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Asset Retirement Obligation and Reclamation Liabilities (Tables)
 6 Months Ended
Jun. 30, 2018
Asset Retirement Obligation and Reclamation Liabilities  
Summary of activity in the Velardena Properties ARO

 

 

 

 

 

 

 

 

 

 

Six Months Ended

 

 

 

June 30,

 

 

    

2018

    

2017

 

 

 

(in thousands)

 

Beginning balance

 

$

2,448

 

$

2,380

 

 

 

 

 

 

 

 

 

Changes in estimates, and other

 

 

 2

 

 

(128)

 

Accretion expense

 

 

103

 

 

97

 

Ending balance

 

$

2,553

 

$

2,349