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Long Term Debt - Credit Agreement Narrative (Details) - Line of Credit - Pulmonx International Sarl | 1 Months Ended | 32 Months Ended |
--- | --- | --- | ---
May 31, 2020 USD ($) | Dec. 31, 2022 USD ($) | Apr. 30, 2020 CHF (SFr) installment | Apr. 30, 2020 USD ($) installment
Debt Instrument [Line Items] |  |  |  |
Repayments of debt |  | $ 100,000 |  |
COVID-19 Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity |  |  | SFr 500,000 | $ 500,000
Proceeds from credit agreement | $ 500,000 |  |  |
Number of installments for repayment | installment |  |  | 12 | 12

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