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Prepaid Expenses and Other Current Assets (Tables)
 12 Months Ended
Dec. 31, 2015
Text Block [Abstract]  
Components of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following:

 

     December 31,  
     2015      2014  
     (In thousands)  

Prepaid corporate insurance

    $ 93       $ 53   

Deposit on inventory

      184         —   

Prepaid expenses and other current assets

      804         135   
  

 

 

     

 

 

  
   $ 1,081       $ 188