Schedule of Goodwill and Intangible Assets Net (Details) (Parenthetical) - USD ($)		6 Months Ended
		Jun. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired		$ 46,500,000
Fair value of intangible assets		66,143,000	$ 66,143,000
Unamortized remaining balance		217,000
IPR&D - OPC1 [Member]
Finite-Lived Intangible Assets [Line Items]
Fair value of intangible assets	[1]	31,700,000	31,700,000
IPR&D - VAC [Member]
Finite-Lived Intangible Assets [Line Items]
Fair value of intangible assets	[1]	$ 14,840,000	$ 14,840,000

[1] Asterias had two in-process research and development (“IPR&D”) intangible assets that were valued at $46.5 million as part of the purchase price allocation that was performed in connection with the Asterias Merger. The fair value of these assets consisted of $31.7 million pertaining to the OPC1 program and $14.8 million pertaining to the VAC platform.