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Organization and Summary of Significant Accounting Policies - Investments (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Sep. 30, 2024
Mar. 31, 2024
Schedule of Equity Method Investments [Line Items]      
Equity method investments $ 13,967 $ 13,329 $ 13,162
Rich Data Corporation (RDC)      
Schedule of Equity Method Investments [Line Items]      
Equity method investments $ 6,200 $ 6,200 $ 6,200