Sale of Significant Ownership Interest in AgeX to Juvenescence Limited (Details Narrative) - Stock Purchase Agreement [Member] - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
Nov. 02, 2018
Aug. 30, 2018
Promissory Note [Member]    
Debt instrument interest rate   7.00%
Debt instrument maturity date   Aug. 28, 2020
Juvenescence Limited [Member]    
Number of shares sold   14.4
Sale of stock price per share   $ 3.00
Purchase price of shares   $ 43.2
Purchase price amount paid $ 10.8  
Indemnity cap   4.3
Juvenescence Limited [Member] | Promissory Note [Member]    
Purchase price amount paid   21.6
Juvenescence Limited [Member] | Closing of Transaction [Member]    
Purchase price amount paid   $ 10.8