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Restructuring Charges	12 Months Ended
Restructuring Charges	Apr. 30, 2022
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges During June 2020, the Company's Board approved the closure and eventual disposal of its manufacturing plant located in Humboldt, Tennessee. Operations ceased at the Humboldt plant in July 2020. During the third quarter of fiscal 2021, the Company sold the Humboldt plant and recognized a gain of $2.3 million on the sale. During fiscal 2022 and 2021, the Company recognized pre-tax restructuring charges, net of $0.3 million and $4.4 million, respectively, related to the closure of the plant. In the fourth quarter of fiscal 2020 and the first quarter of fiscal 2021, the Company implemented nationwide reductions in force, which were substantially completed in the fourth quarter of fiscal 2020 and first quarter of fiscal 2021. During fiscal 2022, 2021 and 2020, the Company recognized pre-tax restructuring charges, net of $(0.1) million, $1.4 million and $0.2 million, respectively, related to these reductions in force, which were primarily severance and separation costs. During fiscal years 2022, 2021, and 2020, the Company recognized total pre-tax restructuring charges, net of $0.2 million, $5.8 million, and $(18,000), respectively.