CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues:
Revenues	$ 24,555	$ 21,307
Cost of revenues	7,987	6,402
Gross profit	16,568	14,905
Operating expenses:
Research and development	3,469	1,786
Sales, general and administrative	21,000	17,257
Litigation-related expenses	2,623	580
Amortization of intangible assets	182	177
Transaction-related expenses		1,542
Gain on settlement		(6,168)
Restructuring expenses	60	398
Total operating expenses	27,334	15,572
Operating loss	(10,766)	(667)
Total other income (expense), net	(2,119)	(1,645)
Loss from continuing operations before taxes	(12,885)	(2,312)
Income tax provision (benefit)	31	(458)
Loss from continuing operations	(12,916)	(1,854)
Loss from discontinued operations, net of applicable taxes	(52)	(62)
Net loss	$ (12,968)	$ (1,916)
Net loss per share, basic and diluted:
Continuing operations	$ (0.29)	$ (0.09)
Discontinued operations	0.00	0.00
Net loss per share, basic and diluted	$ (0.29)	$ (0.09)
Shares used in calculating basic and diluted net loss per share	45,020	21,212
United States Product
Revenues:
Revenues	$ 22,955	$ 19,201
International Supply Agreement
Revenues:
Revenues	$ 1,600	$ 2,106