Segment Information (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) segment	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Segment Information
Number of segments | segment			2
Revenue from external customers	$ 1,705,694	$ 883,846	$ 3,295,427	$ 1,688,202
Segment profit (loss)	(16,721,117)	(7,657,183)	(25,024,988)	(13,353,820)
Segment assets	36,066,947		36,066,947		$ 41,041,945
Less: investment in subsidiary	(29,240,965)		(29,240,965)		(29,240,965)
Less: Intercompany loan	(27,472,280)		(27,472,280)		(22,596,618)
Human Health
Segment Information
Segment profit (loss)	(9,838,061)	(4,474,324)	(12,630,840)	(7,373,630)
Segment assets	32,764,376		32,764,376		37,985,935
Animal Health
Segment Information
Segment profit (loss)	(6,883,056)	(3,182,859)	(12,394,148)	(5,980,190)
Segment assets	60,015,816		60,015,816		54,893,593
Product revenue, net
Segment Information
Revenue from external customers	1,705,694	883,846	3,295,427	1,510,813
Product revenue, net | Human Health
Segment Information
Revenue from external customers	1,684,732	854,170	3,227,853	1,437,439
Product revenue, net | Animal Health
Segment Information
Revenue from external customers	20,962	$ 29,676	67,574	$ 250,763
Operating Segments
Segment Information
Segment assets	$ 92,780,192		$ 92,780,192		$ 92,879,528