Income Taxes (Details Narrative) - USD ($)			3 Months Ended
	Nov. 28, 2018	Mar. 23, 2018	Mar. 31, 2018	Mar. 31, 2019
Valuation allowance				$ 4,400,000
AgeX Therapeutics, Inc. [Member]
Proceeds from issuance of common stock		$ 3,200,000
Gain on sale of equity method investment		3,200,000	$ 3,200,000
Taxable gain	$ 26,400,000	2,200,000
Juvenescence Limited [Member]
Taxable gain		$ 29,400,000
Asterias Biotherapeutics, Inc. [Member]
Deferred tax liability				$ 13,000,000