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Accrued Liabilities
 12 Months Ended
Dec. 31, 2014
Payables and Accruals [Abstract]  
Accrued Liabilities

8. Accrued Liabilities

Accrued liabilities consisted of the following at December 31:

 

     2014      2013  
     (In thousands)  

Employee compensation

    $   6,838       $   4,701   

Clinical study costs

      461         539   

Royalties payable

      632         448   

Warranty reserves

      503         357   

Accounting and legal

      297         272   

Other accrued liabilities

      1,672         771   
  

 

 

     

 

 

  
$ 10,403    $ 7,088