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6. Investments (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of Investments [Abstract]

Schedule of gain (loss) on investments

		2019				2018
		(In thousands)
Change in fair value of investment, warrants		$	(1,308	)		$	(11,895	)
Change in fair value of investment, common stock			11,207				(47,208	)
Loss on sale of investment, common stock			(9,230	)			(19,095	)
Net realized and unrealized gain (loss) on investment at fair value		$	669			$	(78,198	)

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Tabular disclosure of realized and unrealized gain (loss) on investment in security.

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