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Accounts Payable and Accrued Expenses (Tables)
 12 Months Ended
Dec. 31, 2013
Payables And Accruals [Abstract]  
Summary of Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consist of the following:

 

     December 31,  
     2013      2012  
     (In thousands)  

Accounts payable

    $ 525       $ 380   

Accrued legal, professional fees and other

      967         522   

Accrued vacation

      47         21   
  

 

 

     

 

 

  
   $ 1,539       $ 923