Income Taxes	6 Months Ended
Oct. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	J. Income Taxes On December 22, 2017, the Tax Cuts and Jobs Act (the “2017 Tax Act”) was signed into law. The 2017 Tax Act includes a broad range of tax reform provisions affecting businesses, including lower corporate tax rates, changes in business deductions, and international tax provisions. In response to the 2017 Tax Act, the U.S. Securities and Exchange Commission staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of U.S. GAAP in situations where a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the 2017 Tax Act. SAB 118 provides that the measurement period is complete when a company’s accounting is complete and that the measurement period shall not extend beyond one year from the enactment date. SAB 118 provides guidance for registrants under three scenarios: (i) measurement of certain income tax effects is complete, (ii) measurement of certain income tax effects can be reasonably estimated, and (iii) measurement of certain income tax effects cannot be reasonably estimated. The Company has analyzed the income tax effects of the 2017 Tax Act and determined that measurement of the income tax effects can be reasonably estimated, and, as such, provisional amounts have been recorded. The Company believes that all provisional amounts reflected in its financial statements are based on the best estimates that can be made at this time. The Company will continue to analyze all impacts of the 2017 Tax Act and will update provisional amounts as required. The 2017 Tax Act also includes a one-time transition tax on accumulated unrepatriated foreign earnings. The Company has not yet completed the calculation of the related income tax pools for all of its foreign subsidiaries. The Company anticipates additional future impacts at a U.S., state and local tax level related to the 2017 Tax Act as statutory and interpretive guidance continues to become available from applicable tax authorities needed to record the complete tax expense. The Company recorded a reduction of tax expense of $2,000 during the three months and six months ended October 31, 2018 in regard to the provisional amounts recorded at April 30, 2018. In January 2018, the FASB released guidance on the accounting for tax on the global intangible low-taxed income (“GILTI”) provisions of the Tax Act. The GILTI provisions impose a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. The guidance indicates that companies must make a policy decision to either record deferred taxes related to GILTI inclusions or treat any taxes on GILTI inclusions as period costs. The Company is continuing to evaluate these options and will make its decision regarding the accounting policy election within the measurement period as provided under SAB 118. The Company has included estimated tax expense related to GILTI for current year operations in the forecasted effective tax rate.

J. Income Taxes

On December 22, 2017, the Tax Cuts and Jobs Act (the “2017 Tax Act”) was signed into law. The 2017 Tax Act includes a broad range of tax reform provisions affecting businesses, including lower corporate tax rates, changes in business deductions, and international tax provisions. In response to the 2017 Tax Act, the U.S. Securities and Exchange Commission staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of U.S. GAAP in situations where a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the 2017 Tax Act. SAB 118 provides that the measurement period is complete when a company’s accounting is complete and that the measurement period shall not extend beyond one year from the enactment date. SAB 118 provides guidance for registrants under three scenarios: (i) measurement of certain income tax effects is complete, (ii) measurement of certain income tax effects can be reasonably estimated, and (iii) measurement of certain income tax effects cannot be reasonably estimated.

The Company has analyzed the income tax effects of the 2017 Tax Act and determined that measurement of the income tax effects can be reasonably estimated, and, as such, provisional amounts have been recorded. The Company believes that all provisional amounts reflected in its financial statements are based on the best estimates that can be made at this time. The Company will continue to analyze all impacts of the 2017 Tax Act and will update provisional amounts as required.

The 2017 Tax Act also includes a one-time transition tax on accumulated unrepatriated foreign earnings. The Company has not yet completed the calculation of the related income tax pools for all of its foreign subsidiaries. The Company anticipates additional future impacts at a U.S., state and local tax level related to the 2017 Tax Act as statutory and interpretive guidance continues to become available from applicable tax authorities needed to record the complete tax expense. The Company recorded a reduction of tax expense of $2,000 during the three months and six months ended October 31, 2018 in regard to the provisional amounts recorded at April 30, 2018.

In January 2018, the FASB released guidance on the accounting for tax on the global intangible low-taxed income (“GILTI”) provisions of the Tax Act. The GILTI provisions impose a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. The guidance indicates that companies must make a policy decision to either record deferred taxes related to GILTI inclusions or treat any taxes on GILTI inclusions as period costs. The Company is continuing to evaluate these options and will make its decision regarding the accounting policy election within the measurement period as provided under SAB 118. The Company has included estimated tax expense related to GILTI for current year operations in the forecasted effective tax rate.