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COMMITMENTS AND CONTINGENCIES (Tables)
6 Months Ended
Jun. 30, 2012
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, 2012 and December 31, 2011 were as follows:

 
June 30,
2012
 
December 31,
2011
Current portion of asset retirement obligations
$
421

 
$
301

Non-current portion of asset retirement obligations
2,590

 
2,507

Total asset retirement obligations
$
3,011

 
$
2,808