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Income Taxes (Tables)
6 Months Ended
Sep. 30, 2012
Income Tax Disclosure [Abstract]  
Income tax provision
   Three Months Ended  Six Months Ended
   September 30  September 30
   2012  2011  2012  2011
Current income tax expense  $—     $58,442   $—     $129,738 
Deferred income tax benefit   (28,534)   (32,117)   (98,118)   (62,036)
Total income tax provision:  $(28,534)  $26,325   $(98,118)  $67,702 
                     
Effective tax rate   (103%)   25%   (61%)   27%