CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues:
Revenues	$ 91,694	$ 101,739
Cost of revenues	28,457	33,517
Gross profit	63,237	68,222
Operating expenses:
Research and development	9,984	4,920
Sales, general and administrative	72,509	69,959
Litigation-related expenses	5,683	308
Amortization of intangible assets	738	688
Transaction-related expenses	1,550
Gain on settlement	(6,168)
Restructuring expenses	1,381	2,206
Gain on sale of assets		(856)
Total operating expenses	85,677	77,225
Operating loss	(22,440)	(9,003)
Other income (expense):
Interest and other expense, net	(7,139)	(7,615)
Loss on debt extinguishment	(590)
Gain on change of fair value of warrants		12,044
Total other income (expense)	(7,729)	4,429
Loss from continuing operations before taxes	(30,169)	(4,574)
Income tax (benefit)	(1,361)	(34)
Loss from continuing operations	(28,808)	(4,540)
Income (loss) from discontinued operations, net of applicable taxes	(167)	2,246
Net loss	(28,975)	(2,294)
Recognition of beneficial conversion feature - Series B Preferred Stock	(13,488)
Net loss attributable to common shareholders	$ (42,463)	$ (2,294)
(Loss) income per share, basic:
Continuing operations	$ (0.82)	$ (0.36)
Discontinued operations	0.00	0.18
Net loss per share, basic	(1.20)	(0.18)
(Loss) income per share, diluted:
Continuing operations	(0.82)	(1.25)
Discontinued operations	0.00	0.17
Net loss per share, diluted	$ (1.20)	$ (1.08)
Shares used in calculating basic net loss per share	35,315	12,788
Shares used in calculating diluted net loss per share	35,315	13,282
United States Product
Revenues:
Revenues	$ 83,656	$ 86,925
International Supply Agreement
Revenues:
Revenues	$ 8,038	$ 14,814