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Details of Certain Financial Statement Components - Accounts receivable, net (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
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Details of Certain Financial Statement Components |  |  |
Accounts receivable, gross | $ 1,593 | $ 1,646 |
Allowance for expected credit losses | (51) | (34) | $ (40)
Accounts receivable, net | $ 1,542 | $ 1,612 |

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