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Income Taxes (Schedule Of Uncertainties In Income Tax Provision Liability) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Income Taxes [Abstract]    
Beginning Balance $ 297 $ 195
Increase for tax positions   102
Increase for tax positions 764  
Ending Balance $ 1,061 $ 297