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v3.22.1

Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Deficit (Parenthetical) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 USD ($)
Series B Convertible Preferred Stock |
Issuance costs | $ 419

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- Definition Temporary equity issuance costs. + References No definition available. + Details
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Namespace Prefix: | pyxs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |