Stock-Based Awards (Details Narrative) - shares		6 Months Ended
	Mar. 08, 2019	Jun. 30, 2019	Jul. 30, 2019
Asterias Biotherapeutics, Inc. [Member]
Share based compensation, shares		84,940
Asterias Biotherapeutics, Inc. [Member] | RSU Award [Member]
Conversion of shares and common stock issued	60,304
2012 Equity Incentive Plan [Member] | Maximum [Member]
Number of shares available for grant		16,000,000
2012 Equity Incentive Plan [Member] | Maximum [Member] | Subsequent Event [Member]
Number of shares available for grant			24,000,000
Asterias 2013 Equity Incentive Plan [Member]
Number of shares available for grant		7,309,184
Asterias 2013 Equity Incentive Plan [Member] | Asterias Biotherapeutics, Inc. [Member]
Number of shares available for grant		5,189,520