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Note 4 - Leases (Tables)
12 Months Ended
Apr. 30, 2022
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
  (In thousands) 

Fiscal 2023

 $11,315 

Fiscal 2024

  8,300 

Fiscal 2025

  5,346 

Fiscal 2026

  3,397 

Fiscal 2027

  2,325 

Thereafter

  2,524 

Total minimum lease payments including interest

  33,207 

Less: Amounts representing interest

  (1,961)

Present value of minimum lease payments

  31,246 

Less: Current portion of lease liabilities

  (10,543)

Non-Current portion of operating lease liabilities

 $20,703