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COMMITMENTS AND CONTINGENCIES (Tables)
 6 Months Ended
Jun. 30, 2017
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, 2017 and December 31, 2016 were as follows:
 
June 30,
2017
 
December 31,
2016
Current portion of asset retirement obligations
$
68

 
$
78

Non-current portion of asset retirement obligations
1,856

 
1,693

Total asset retirement obligations
$
1,924

 
$
1,771