Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue	$ 1,304,000	$ 3,012,000
Cost of revenue	1,129,000	1,941,000
Gross profit	175,000	1,071,000
Operating expenses:
Research and development	1,637,000	2,480,000
Selling, general and administrative	4,365,000	6,626,000
Restructuring costs		742,000
Total operating expenses	6,002,000	9,848,000
Loss from operations	(5,827,000)	(8,777,000)
Interest expense, net	(210,000)	(1,116,000)
Other expense, net	(91,000)	(11,000)
Net loss from consolidated companies	(6,128,000)	(9,904,000)
Loss from minority interest in limited liability company	(182,000)	(125,000)
Comprehensive and net loss	(6,310,000)	(10,029,000)
Series B convertible preferred stock dividends	(989,000)
Net loss attributable to common stockholders	$ (7,299,000)	$ (10,029,000)
Net loss per share of common stock:
Basic and diluted (in dollars per share)	$ (0.82)	$ (21.63)
Weighted average shares used in computing net loss per common share:
Basic and diluted (in shares)	8,930,744	463,719