CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Revenues	$ 27,319	$ 22,042	$ 51,874	$ 43,349
Cost of revenues	8,433	6,488	16,420	12,890
Gross profit	18,886	15,554	35,454	30,459
Operating expenses:
Research and development	3,360	2,009	6,829	3,795
Sales, general and administrative	24,568	17,538	45,568	34,795
Litigation-related expenses	1,200	2,234	3,823	2,814
Amortization of intangible assets	172	187	354	364
Transaction-related expenses		(62)		1,480
Gain on settlement				(6,168)
Restructuring expenses		193	60	591
Total operating expenses	29,300	22,099	56,634	37,671
Operating loss	(10,414)	(6,545)	(21,180)	(7,212)
Total other expense, net	(1,921)	(1,784)	(4,040)	(3,429)
Loss from continuing operations before taxes	(12,335)	(8,329)	(25,220)	(10,641)
Income tax provision (benefit)	71	(1,265)	102	(1,723)
Loss from continuing operations	(12,406)	(7,064)	(25,322)	(8,918)
Loss from discontinued operations, net of applicable taxes	(30)	(12)	(82)	(74)
Net loss	$ (12,436)	$ (7,076)	$ (25,404)	$ (8,992)
Net loss per share, basic and diluted:
Continuing operations	$ (0.26)	$ (0.21)	$ (0.55)	$ (0.32)
Discontinued operations	0.00	0.00	0.00	0.00
Net loss per share, basic and diluted	$ (0.27)	$ (0.21)	$ (0.55)	$ (0.32)
Shares used in calculating basic and diluted net loss per share	46,880	34,030	45,957	27,656
United States Product
Revenues:
Revenues	$ 26,093	$ 20,409	$ 49,048	$ 39,610
International Supply Agreement
Revenues:
Revenues	$ 1,226	$ 1,633	$ 2,826	$ 3,739