Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2019

Supplemental Cash Flow Elements [Abstract]

Schedule of Condensed Consolidated Statements of Cash Flows

Non-cash investing and financing transactions presented separately from the condensed consolidated statements of cash flows for the six months ended June 30, 2019 and 2018 are as follows (in thousands):

	Six Months Ended June 30, (unaudited)
	2019		2018
Supplemental disclosures of non-cash investing and financing activities:
Issuance of common stock for the Asterias Merger (Note 3)	$	32,353	$	-
Assumption of liabilities in the Asterias Merger (Note 3)		1,136		-
Assumptions of warrants in the Asterias Merger (Note 3)		867		-