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Defined Benefit Pension Plans
 6 Months Ended
Oct. 31, 2022
Retirement Benefits [Abstract]  
Defined Benefit Pension Plans Defined Benefit Pension Plans
The Company has non-contributory defined benefit pension plans covering substantially all domestic salaried and hourly employees. These plans were amended as of April 30, 2005; no further benefits have been, or will be, earned under the plans, subsequent to the amendment date, and no additional participants will be added to the plans. There were no Company contributions paid to the plans for the three and six months ended October 31, 2022 and October 31, 2021. The Company assumed an expected long-term rate of return of 7.75% for the periods ended October 31, 2022 and October 31, 2021.
Pension expense / (income) consisted of the following (in thousands):
Three Months Ended
October 31, 2022October 31, 2021
Service cost$— $— 
Interest cost100 177 
Expected return on plan assets(166)(401)
Recognition of net loss74 135 
Net periodic pension expense (income)$8 $(89)
Six Months Ended
October 31, 2022October 31, 2021
Service cost$— $— 
Interest cost422 354 
Expected return on plan assets(701)(802)
Recognition of net loss314 270 
Net periodic pension expense (income)$35 $(178)