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v3.25.2

EQUITY - Rights of the common shares gross proceeds (Details) | 6 Months Ended
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Jun. 30, 2025 Vote
EQUITY |
Number of vote per share | 1

X
- Definition Represents the number of votes per common share. + References No definition available. + Details
Name: | pmn_NumberOfVotesPerCommonShare
Namespace Prefix: | pmn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration