Accrued Expenses and Other Current Liabilities - Narrative (Details) $ in Millions	Dec. 31, 2021 USD ($)
Payables and Accruals [Abstract]
Liability for FICA withholding under CARES Act provisions	$ 3.2

Social Security Tax, Employer, Deferral, CARES Act

No definition available.

Name:	lmb_SocialSecurityTaxEmployerDeferralCARESAct
Namespace Prefix:	lmb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant