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Other Accrued Liabilities
 6 Months Ended
Jun. 30, 2011
Other Accrued Liabilities [Abstract]  
Other Accrued Liabilities
5. Other Accrued Liabilities
Other accrued liabilities consist of the following:
                 
    June 30,     December 31,  
    2011     2010  
    (in thousands)  
 
               
Accrued professional fees
  $ 414     $ 277  
Accrued salaries and employee benefits
    627       554  
Accrued financing expenses
    195       —  
Other accrued liabilities
    481       455  
 
           
Total other accrued liabilities
  $ 1,717     $ 1,286