Leases - Additional information (Details) $ in Thousands	3 Months Ended
Mar. 30, 2025 USD ($)
Leases
Right-of-Use asset	$ 3,100
Operating lease liability	3,200
Gain on lease modification	92
Base rent related to the short-term lease	$ 0

The amount of derecognition in operating lease liability due to modification of lease.

No definition available.

Name:	lvlu_OperatingLeaseLiabilityDerecognitionOnModification
Namespace Prefix:	lvlu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration