Balance Sheet Components - Intangible assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Schedule of Finite-lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	$ 19,455	$ 19,455
Less: accumulated amortization	(7,994)	(6,314)
Finite-Lived Intangible Assets, Net	11,461	13,141
Goodwill	269	269
Intangible assets, net	11,730	13,410
Patents and technology rights
Schedule of Finite-lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	18,037	18,037
Trade name
Schedule of Finite-lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	268	268
Customer relationships
Schedule of Finite-lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	$ 1,150	$ 1,150