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Comprehensive Income (Loss) (Details 1) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Components of comprehensive income (loss)        
Net (loss) income $ (3,190) $ (2,765) $ 656 $ (745)
Unrealized investment gain (loss) 43 (43) 30 (43)
Foreign currency translation (125) (29) (22) 109
Comprehensive (loss) income $ (3,272) $ (2,837) $ 664 $ (679)