Condensed Consolidated Statements of Redeemable Preferred Stock, Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parenthetical) $ in Thousands	3 Months Ended
Apr. 04, 2021 USD ($)
Series B-1 Redeemable Preferred Stock
Issuance costs	$ 23

The amount of issuance costs associated with the issuance of temporary equity.

No definition available.

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