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Accumulated Other Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Sep. 30, 2011
Accumulated other comprehensive income (loss)    
Change in unrealized gains (losses) on available-for-sale securities (net of tax) $ 30 $ (12)
Foreign currency translation adjustments (255) 182
Total $ (225) $ 170