Allowance for Loan Losses (Additional Information) (Details)	Mar. 31, 2020 loan loan_pool
Receivables [Abstract]
Number of purchase credit impaired loan pools \| loan_pool	6
Number of non-pooled purchase credit impaired loans \| loan	16

Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Number Of Non-pooled Loans

No definition available.

Name:	levl_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesNumberOfNonPooledLoans
Namespace Prefix:	levl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant