CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue:
Revenue	$ 41,163	$ 29,201	$ 100,907	$ 81,075
Cost of revenue	11,926	9,268	29,797	25,688
Gross profit	29,237	19,933	71,110	55,387
Operating expenses:
Research and development	4,379	3,800	11,800	10,413
Sales, general and administrative	35,985	26,954	91,021	72,738
Litigation-related	1,560	604	5,507	4,427
Amortization of acquired intangible assets	172	172	516	526
Transaction-related	2		4,093
Restructuring				60
Total operating expenses	42,098	31,530	112,937	88,164
Operating loss	(12,861)	(11,597)	(41,827)	(32,777)
Interest and other expense, net:
Interest expense, net	(2,762)	(2,919)	(8,668)	(6,947)
Loss on debt extinguishment			(1,555)
Other expense, net	(6)	(7)	(6)	(19)
Total interest and other expense, net	(2,768)	(2,926)	(10,229)	(6,966)
Loss from continuing operations before taxes	(15,629)	(14,523)	(52,056)	(39,743)
Income tax provision	40	20	140	122
Loss from continuing operations	(15,669)	(14,543)	(52,196)	(39,865)
Loss from discontinued operations, net of applicable taxes		(24)		(106)
Net loss	$ (15,669)	$ (14,567)	$ (52,196)	$ (39,971)
Net loss per share, basic and diluted:
Continuing operations	$ (0.24)	$ (0.26)	$ (0.82)	$ (0.81)
Discontinued operations	0.00	0.00	0.00	0.00
Net loss per share, basic and diluted	$ (0.24)	$ (0.26)	$ (0.82)	$ (0.81)
Shares used in calculating basic and diluted net loss per share	64,761	55,736	63,669	49,252
United States Product
Revenue:
Revenue	$ 40,052	$ 28,051	$ 97,956	$ 77,099
International Supply Agreement
Revenue:
Revenue	$ 1,111	$ 1,150	$ 2,951	$ 3,976