Income Taxes	9 Months Ended
Jan. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s effective income tax rate for the three and nine month periods ended January 31, 2016 were 35.7% and 36.1%, respectively, compared with 33.7% and 33.5%, respectively, in the comparable periods of the prior fiscal year. The higher effective tax rates for the third quarter and first nine months of fiscal 2016 were the result of a federal research and experimentation tax credit for fiscal years 2011 through 2014 of $1.2 million being recorded in the first nine months of fiscal 2015.

Income Taxes

9 Months Ended

Jan. 31, 2016

The Company’s effective income tax rate for the three and nine month periods ended January 31, 2016 were 35.7% and 36.1%, respectively, compared with 33.7% and 33.5%, respectively, in the comparable periods of the prior fiscal year. The higher effective tax rates for the third quarter and first nine months of fiscal 2016 were the result of a federal research and experimentation tax credit for fiscal years 2011 through 2014 of $1.2 million being recorded in the first nine months of fiscal 2015.