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Balance sheet details - Schedule Of Inventory Current (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Total inventories | $ 2,533 | $ 2,114 |
DWave System [Member] |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Raw materials |  | 2,103 | $ 2,516
Work-in-process |  | 11 | 5
Total inventories |  | $ 2,114 | $ 2,521

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