CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Revenues, net	$ 4,417,598	$ 5,535,685	$ 12,653,495	$ 14,869,023
Cost of goods sold	700,814	1,237,446	2,042,174	3,475,997
Gross profit	3,716,784	4,298,239	10,611,321	11,393,026
Operating expenses:
Sales, general, and administration	12,057,868	14,721,710	43,524,412	35,019,268
Research and development	6,436,802	14,664,123	22,878,037	43,602,333
Depreciation and amortization	54,055	40,460	156,943	84,319
Total operating expense	18,548,725	29,426,293	66,559,392	78,705,920
Operating loss	(14,831,941)	(25,128,054)	(55,948,071)	(67,312,894)
Other income:
Miscellaneous income	167,300	109,942	442,322	265,879
Accreted interest		2,451	7,699	7,850
Total other income	167,300	112,393	450,021	273,729
Loss before taxes	(14,664,641)	(25,015,661)	(55,498,050)	(67,039,165)
Net loss	$ (14,664,641)	$ (25,015,661)	$ (55,498,050)	$ (67,039,165)
Net loss per share, basic and diluted (in dollars per share)	$ (0.07)	$ (0.13)	$ (0.27)	$ (0.34)
Weighted average number of common shares outstanding (in shares)	207,938,338	196,502,327	203,282,335	195,912,173