XML 128 R115.htm IDEA: XBRL DOCUMENT v3.23.2
Pension - Net benefit income (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Pension    
Expected return on plan assets $ (472) $ (108)
Interest cost (70) (39)
Actuarial gain (167) (179)
Net periodic benefit cost $ 569 $ 248
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Investment Income, Interest Investment Income, Interest