CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Total revenue, net	$ 23,001,000	$ 10,701,000	$ 42,867,000	$ 22,952,000
Cost of goods sold	4,132,000	4,400,000	8,819,000	7,115,000
Gross profit	18,869,000	6,301,000	34,048,000	15,837,000
Operating expenses:
Selling and marketing	32,164,000	29,887,000	56,188,000	68,683,000
General and administrative	19,873,000	18,710,000	38,256,000	37,103,000
Research and development	2,011,000	2,742,000	4,061,000	6,011,000
Total operating expenses	54,048,000	51,339,000	98,505,000	111,797,000
Loss from operations	(35,179,000)	(45,038,000)	(64,457,000)	(95,960,000)
Other (expense) income:
Interest expense and other financing costs	(7,596,000)	(7,027,000)	(17,823,000)	(13,289,000)
Other income, net	123,000	89,000	245,000	424,000
Total other (expense), net	(7,473,000)	(6,938,000)	(17,578,000)	(12,865,000)
Loss before income taxes	(42,652,000)	(51,976,000)	(82,035,000)	(108,825,000)
Provision for income taxes	0	0	0	0
Net loss	$ (42,652,000)	$ (51,976,000)	$ (82,035,000)	$ (108,825,000)
Loss per common share, basic and diluted	$ (0.11)	$ (0.19)	$ (0.22)	$ (0.40)
Weighted average common shares, basic and diluted	394,074	271,876	370,776	271,668
Product [Member]
Total revenue, net	$ 23,001,000	$ 10,701,000	$ 42,633,000	$ 22,952,000
License [Member]
Total revenue, net			$ 234,000