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Summary of Significant Accounting Policies - Cash Equivalents Table (Details) - USD ($)
$ in Thousands
Apr. 30, 2024
Apr. 30, 2023
Apr. 30, 2022
Accounting Policies [Abstract]      
Cash and cash equivalents $ 23,267 $ 8,078  
Restricted cash 2,671 5,737  
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents $ 25,938 $ 13,815 $ 6,894