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Fair Value Measurements - (Details) - USD ($) $ in Thousands | Jan. 28, 2023 | Apr. 30, 2022
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available for sale securities | $ 0 | $ 24,716
Contingent consideration |  | (1,084)
Total |  | 1,084
Significant unobservable inputs (Level 3) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Contingent consideration |  | (1,084)
Total |  | 1,084
Recurring basis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available for sale securities |  | 24,716
Contingently returnable consideration |  | 143
Total | 3,302 | 24,859
Contingent consideration | (1,727) |
Total | 1,727 |
Recurring basis | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 3,165 |
Recurring basis | Warrant |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 137 |
Recurring basis | Quoted prices in active market for identical assets (Level 1) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 3,165 |
Recurring basis | Quoted prices in active market for identical assets (Level 1) | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 3,165 |
Recurring basis | Significant other observable inputs (Level 2) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available for sale securities |  | 24,716
Total | 137 | 24,716
Recurring basis | Significant other observable inputs (Level 2) | Warrant |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | 137 |
Recurring basis | Significant unobservable inputs (Level 3) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Contingently returnable consideration |  | 143
Total |  | $ 143
Contingent consideration | (1,727) |
Total | $ 1,727 |

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