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Defined Benefit Pension Plans
 9 Months Ended
Jan. 31, 2024
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 nine months ended January 31, 2024 and January 31, 2023. The Company assumed an expected long-term rate of return of 7.75% for the periods ended January 31, 2024 and January 31, 2023.
Pension expense consisted of the following (in thousands):
Three Months Ended
January 31, 2024January 31, 2023
Service cost$— $— 
Interest cost223 211 
Expected return on plan assets(328)(350)
Recognition of net loss146 157 
Net periodic pension expense$41 $18 
Nine Months Ended
January 31, 2024January 31, 2023
Service cost$— $— 
Interest cost670 633 
Expected return on plan assets(984)(1,051)
Recognition of net loss436 471 
Net periodic pension expense$122 $53