Income Taxes	6 Months Ended
Mar. 31, 2017
Income Taxes
Income Taxes	Note 4.Income Taxes Income tax expense for the three and six months ended March 31, 2016 and 2017 differed from the U.S. federal statutory rate of 35% primarily due to state income taxes, differing tax rates on foreign earnings and discrete tax items that impacted income tax expense in these periods. The effective tax rate for the three months ended March 31, 2017 was 2.4% compared to 29.7% in the same period of fiscal 2016. The effective tax rate for the six months ended March 31, 2017 was 9.0% compared to -7.7% in the same period of fiscal 2016. The lower effective tax rate for the second quarter of fiscal 2017 is primarily attributable to the expensing of deferred tax assets of $379 related to a stock option grant that expired during the quarter.

Income Taxes

6 Months Ended

Mar. 31, 2017

Note 4.Income Taxes

Income tax expense for the three and six months ended March 31, 2016 and 2017 differed from the U.S. federal statutory rate of 35% primarily due to state income taxes, differing tax rates on foreign earnings and discrete tax items that impacted income tax expense in these periods. The effective tax rate for the three months ended March 31, 2017 was 2.4% compared to 29.7% in the same period of fiscal 2016. The effective tax rate for the six months ended March 31, 2017 was 9.0% compared to -7.7% in the same period of fiscal 2016. The lower effective tax rate for the second quarter of fiscal 2017 is primarily attributable to the expensing of deferred tax assets of $379 related to a stock option grant that expired during the quarter.