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Fair Value Measurements - (Details) - Recurring basis - USD ($)
$ in Thousands
Oct. 26, 2024
Apr. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities $ 685 $ 937
Warrants 75 90
Total 760 1,027
Financial liabilities measured at fair value 0 0
Quoted prices in active market for identical assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities 685 937
Total 685 937
Significant other observable inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Warrants 75 90
Total $ 75 $ 90