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Comprehensive (Loss) Income
 3 Months Ended
Dec. 31, 2011
Comprehensive (Loss) Income [Abstract]  
COMPREHENSIVE (LOSS) INCOME
3. COMPREHENSIVE (LOSS) INCOME
Comprehensive (loss) income is comprised of net income, foreign currency translation adjustments and unrealized gain (loss) on available-for-sale marketable securities, net of tax. Comprehensive (loss) income was (in thousands):
                 
    Three months ended December 31,  
    2011     2010  
Net income
  $ 724     $ 2,316  
Other comprehensive (loss) income:
               
Change in foreign currency translation adjustment
    (1,783 )     (2,008 )
Change in net unrealized gain (loss) on investments
    23       (7 )
Less income tax (provision) benefit
    (9 )     3  
Reclassification of realized loss included in net income
    12       —  
Less income tax benefit
    (5 )     —  
 
           
Comprehensive (loss) income
  $ (1,038 )   $ 304