Consolidated statements of cash flows (Parenthetical)	12 Months Ended
Dec. 31, 2021 shares
Consolidated statements of cash flows
Issuance of VUmc common stock (in shares)	235,664

Number of shares issued in lieu of license liability.

No definition available.

Name:	lvtx_SharesIssuedInLieuOfLicenseLiability
Namespace Prefix:	lvtx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration