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Statements of Stockholders' Equity (Parenthetical) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Statements of Stockholders' Equity
Issuance cost	$ 669

X

- Definition

Represents the amount of stock issuance incurred.

+ References

No definition available.

+ Details

Name:	pasg_StockIssuanceCosts
Namespace Prefix:	pasg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration