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Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Intangible Assets, Net

At December 31, 2020 and 2019, goodwill and intangible assets, net consisted of the following: (in thousands):

		December 31,
		2020				2019
Goodwill ⁽¹⁾		$	10,672			$	10,672

Intangible assets:
Acquired IPR&D – OPC1 (from the Asterias Merger) ⁽²⁾		$	31,700			$	31,700
Acquired IPR&D – VAC2 (from the Asterias Merger) ⁽²⁾			14,840				14,840
Intangible assets subject to amortization:
Acquired patents			18,953				18,953
Acquired royalty contracts ⁽²⁾			650				650
Total intangible assets			66,143				66,143
Accumulated amortization			(19,111	)			(17,895	)
Intangible assets, net		$	47,032			$	48,248

⁽¹⁾	Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired and liabilities assumed in the Asterias Merger (see Note 3).

⁽²⁾	See Note 3 for information on the Asterias Merger which was consummated on March 8, 2019.

Schedule of Intangible Assets Future Amortization Expense

Amortization of intangible assets for periods subsequent to December 31, 2020 is as follows (in thousands):

Year Ended December 31,		Amortization Expense
2021		$	210
2022			130
2023			130
2024			22
Total		$	492