Leases - Schedule of Right of Use Asset and Related Lease Liability (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Sep. 09, 2020
Leases [Abstract]
Right-of-use asset	$ 8,622	$ 8,841
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	gaia:RightOfUseLeaseAssetNet
Operating lease liability (current)	$ 691
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
Operating lease liability (non-current)	$ 7,952
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	gaia:LongTermDebtAndOtherLiabilitiesNetNoncurrent
Operating Lease, Liability	$ 8,643	$ 8,841