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Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Effective tax rates from continuing operations        
Income tax expense (benefit) $ 19 $ (1,353) $ (69) $ (6,209)
Effective tax rate 3.70% 19.00% 4.10% 27.70%