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Prepaid expenses and other current assets
 12 Months Ended
Dec. 31, 2014
Text Block [Abstract]  
Prepaid expenses and other current assets

6. Prepaid expenses and other current assets

Prepaid expenses and other current assets consist of the following:

 

     As of December 31,  
     2014      2013  

Prepaid concession approval fees

    $ —        $ 6   

Prepaid for procurement of advertising equipment

      6         65   

Prepaid for rent of advertising spaces

      2         207   

Rental deposits and other receivables

      257         521   
  

 

 

     

 

 

  

Total prepaid expenses and other current assets

 $ 265    $ 799