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Intangible Assets - Summary of Intangible Assets (Detail) - USD ($)
$ in Thousands
Jan. 26, 2025
Apr. 28, 2024
Jan. 28, 2024
Apr. 30, 2023
Intangible Assets [Line Items]        
Tradename $ 540 $ 540 $ 540  
Intangible assets 1,594 1,876 [1] 1,970  
Customer Relationships [Member]        
Intangible Assets [Line Items]        
Finite-lived intangible assets, net 809 1,035 1,110 $ 1,335
Non-Compete Agreement [Member]        
Intangible Assets [Line Items]        
Finite-lived intangible assets, net $ 245 $ 301 $ 320 $ 377
[1] Derived from audited consolidated financial statements.