Commitments and Contingencies - Schedule of Supplemental Balance Sheet Information Related to Operating Lease (Details) - USD ($) $ in Thousands	Dec. 31, 2020	[1]	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Right-of-use asset, net			$ 424
Right-of-use lease liability			$ 428
Weighted average remaining lease term, Operating lease	0 years		1 year
Weighted average discount rate, Operating lease	6.00%		6.00%

[1] The right-of-use asset and right-of-use lease liability were fully amortized and written off as of December 31, 2020 upon termination of the AgeX Lease.