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Income Taxes
6 Months Ended
Oct. 31, 2014
Income Taxes [Abstract]  
Income Tax Disclosure [Text Block]
INCOME TAXES

Our effective income tax rates were 38.9% for the six months ended October 31, 2014 and 38.3% for the six months ended October 31, 2013.
    
As of October 31, 2014, the federal tax returns for the fiscal years ended 2010 through 2014 are open to audit until the statute of limitations closes for the years in which our net operating losses are utilized. We would recognize interest and penalties accrued on unrecognized tax benefits as well as interest received from favorable tax settlements within income tax expense. As of October 31, 2014, we recorded no accrued interest or penalties related to uncertain tax positions. We expect no significant change in the amount of unrecognized tax benefit, accrued interest or penalties within the next twelve months.