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Asset Retirement Obligation (Tables)
6 Months Ended
Jun. 30, 2017
Asset Retirement Obligation Disclosure [Abstract]  
Reconciliation of Total Reclamation Liability for Asset Retirement Obligations

The following is a reconciliation of the total reclamation liability for asset retirement obligations:

 

 

Balance at December 31, 2016

 

$

1,384

 

Additions to liabilities

 

 

-

 

Accretion expenses

 

 

41

 

Balance at June 30, 2017

 

$

1,425