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COMMITMENTS AND CONTINGENCIES (Tables)
 6 Months Ended
Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]  
Schedule of asset retirement obligations
The Company’s asset retirement obligations that are included in the Condensed Consolidated Balance Sheets as of June 30, 2013 and December 31, 2012 were as follows:

 
June 30,
2013
 
December 31,
2012
Current portion of asset retirement obligations
$
12

 
$
52

Non-current portion of asset retirement obligations
2,572

 
2,769

Total asset retirement obligations
$
2,584

 
$
2,821