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Income Taxes (Tables)
3 Months Ended
Apr. 30, 2013
Income Tax Disclosure [Abstract]  
Provision for Income Taxes
The provision for income taxes was comprised of the following:
 
 
 
 
Three months ended April 30,
2013
 
2012
Income tax expense
$
568

 
$
781

Effective tax rate
381
%
 
3
%