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Other Current Liabilities
 6 Months Ended
Jun. 30, 2011
Other Current Liabilities [Abstract]  
Other Current Liabilities
Note 5. Other Current Liabilities
     Other current liabilities consist of the following (in thousands):
                 
    June 30,     December 31,  
    2011     2010  
Accrued liability for technology licenses
  $ 1,900     $ 2,300  
Customer incentives
    2,007       1,740  
Current portion of note payable to state agency
    212       211  
Other
    1,115       1,256  
 
           
 
  $ 5,234     $ 5,507