Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
Total revenue	$ 4,449,404	$ 4,785,138	$ 9,860,847	$ 9,267,913
Operating expenses:
Cost of product sales	(141,822)	1,422,957	1,806,070	2,286,582
Research and development	3,712,596	1,082,698	7,113,785	2,732,475
General and administrative	2,382,007	3,041,955	5,098,990	5,949,318
Sales and marketing	2,936,851	2,042,015	6,045,753	3,578,378
Amortization expense	1,078,847	1,233,035	2,157,694	2,250,444
Impairment of intangible assets	1,449,121	1,701,875	1,449,121	1,701,875
Change in fair value of contingent consideration	(992,350)	13,239	(811,948)	276,008
Total operating expenses	10,425,250	10,537,774	22,859,465	18,775,080
Loss from operations	(5,975,846)	(5,752,636)	(12,998,618)	(9,507,167)
Other (expense) income:
Change in fair value of warrant liability and unit purchase option liability	18,910	3,918	(28,668)	(19,332)
Other (expense) income, net	0	0	(9,400)	18,654
Interest expense, net	(199,746)	(242,407)	(407,685)	(342,810)
Total other expense, net	(180,836)	(238,489)	(445,753)	(343,488)
Net loss before taxes	(6,156,682)	(5,991,125)	(13,444,371)	(9,850,655)
Income tax expense	66,417	16,351	232,776	39,664
Net loss	(6,223,099)	(6,007,476)	(13,677,147)	(9,890,319)
Product revenue, net
Revenues
Total revenue	4,449,404	4,710,919	9,860,847	8,971,038
Sales force revenue
Revenues
Total revenue	$ 0	$ 74,219	$ 0	$ 296,875
Common stock
Other (expense) income:
Net income (loss) per share of common stock, basic and diluted (in dollars per share)	$ (0.11)	$ (0.19)	$ (0.24)	$ (0.31)
Preferred Stock
Other (expense) income:
Net income (loss) per share of common stock, basic and diluted (in dollars per share)	$ (0.55)	$ 0.00	$ (1.21)	$ 0.00