Significant Accounting Policies - Franchise Taxes (Details) - Iris Parent Holding Corp - USD ($)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Accounting Policies [Line Items]
Franchise tax, penalties and interest	$ 405	$ 378
Accrued franchise tax liability	$ 805	$ 400

Carrying value as of the balance sheet date of obligations incurred through the date and payable for franchise tax liability within one year or normal operating cycle if longer, classified as current.

No definition available.

Name:	limn_AccruedFranchiseTaxLiabilityCurrent
Namespace Prefix:	limn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant