XML 51 R41.htm IDEA: XBRL DOCUMENT v3.26.1

Common Stock and Preferred Stock - Schedule of Common Stock Reserved For Future Issuance (Details) - shares	Jun. 30, 2026	Dec. 31, 2025
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	6,671,262	5,322,382
Shares reserved for exercise of outstanding stock options
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	1,905,404	1,876,778
Pre-Funded Warrant | January 2024 Follow-On Offering
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	704,225	704,225
Pre-Funded Warrant | April 2024 Follow-On Offering
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	221,238	221,238
Pre-Funded Warrant | October 2025 Follow-On Offering
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	318,470	318,470
Future Share-based Awards | Shares reserved for future awards under the 2020 Stock Option and Incentive Plan
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	1,402,688	473,358
Future Share-based Awards | Shares reserved for future awards under the 2020 Employee Stock Purchase Plan
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	528,313	281,180
Future Share-based Awards | Shares reserved for future awards under the 2024 Inducement Plan
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	936,132	945,280
Shares reserved for vesting of restricted stock units and performance stock units
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance (in shares)	654,792	501,853

X

- Definition

Schedule Of Common Stock Reserved For Future Issuance Line items

+ References

No definition available.

+ Details

Name:	prax_ScheduleOfCommonStockReservedForFutureIssuanceLineItems
Namespace Prefix:	prax_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=prax_PreFundedWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=prax_January2024FollowOnOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=prax_April2024FollowOnOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=prax_October2025FollowOnOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_StockCompensationPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=prax_TwentyTwentyEmployeeStockIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=prax_TwentyTwentyEmployeeStockPurchasePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=prax_InducementPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=prax_RestrictedStockUnitsAndPerformanceStockUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: