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Balance Sheet Components - Intangible assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Jun. 30, 2024
Schedule of Finite-lived Intangible Assets and Goodwill    
Finite-Lived Intangible Assets, Gross $ 19,455 $ 19,455
Less: accumulated amortization (17,020) (16,208)
Total intangible assets 2,435 3,247
Goodwill 269 269
Intangible assets, net 2,704 3,516
Patents and technology rights    
Schedule of Finite-lived Intangible Assets and Goodwill    
Finite-Lived Intangible Assets, Gross 18,037 18,037
Trade name    
Schedule of Finite-lived Intangible Assets and Goodwill    
Finite-Lived Intangible Assets, Gross 268 268
Customer relationships    
Schedule of Finite-lived Intangible Assets and Goodwill    
Finite-Lived Intangible Assets, Gross $ 1,150 $ 1,150