Statements of Operations and Comprehensive Loss - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues	$ 8,072,120	$ 2,706,981
Costs and expenses:
Cost of sales	807,192	121,391
Research and development	40,491,358	28,699,576
General and administrative	13,597,119	8,754,088
Total costs and expenses	54,895,669	37,575,055
Loss from operations	(46,823,549)	(34,868,074)
Other income (expense):
Interest income	613,716	304,981
Interest expense	(1,373,622)	(18,988,176)
Gain on early extinguishment of long-term debt		137,695
Warrant fair value adjustments		277,715
Total other expense, net	(759,906)	(18,267,785)
Net loss	(47,583,455)	(53,135,859)
Other comprehensive loss
Comprehensive loss	$ (47,583,455)	$ (53,135,859)
Net loss per common share:
Basic (in dollars per share)	$ (2.57)	$ (7.42)
Diluted (in dollars per share)	$ (2.59)	$ (7.51)
Weighted average common shares outstanding:
Basic (in shares)	18,482,455	7,163,304
Diluted (in shares)	18,371,083	7,078,757