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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
6 Months Ended
Jun. 30, 2012
Notes to Financial Statements  
Inventories
             

December 31,

2011

 

June 30,

2012

                         
Raw  materials             $ 5,580   $ 4,943   
Work in process               2,505     3,521   
Finished goods               5,043     4,048   
Allowance for excess or obsolete inventory               (727 )   (824 
              $ 12,401   $  11,688