Segment Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) segment	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Segment Information
Number of segments | segment			2
Revenue from external customers	$ 972,779	$ 1,132,067	$ 4,268,206	$ 2,820,269
Segment profit (loss)	(7,555,065)	(6,138,352)	(32,580,053)	(19,492,172)
Segment assets	35,626,544		35,626,544		$ 41,041,945
Less: investment in subsidiary	(29,240,965)		(29,240,965)		(29,240,965)
Less: Intercompany loan	(33,501,296)		(33,501,296)		(22,596,618)
Human Health
Segment Information
Segment profit (loss)	(3,955,115)	(3,145,782)	(16,585,956)	(10,519,413)
Segment assets	33,571,477		33,571,477		37,985,935
Animal Health
Segment Information
Segment profit (loss)	(3,599,950)	(2,992,570)	(15,994,097)	(8,972,759)
Segment assets	64,797,329		64,797,329		54,893,593
Product revenue, net
Segment Information
Revenue from external customers	972,779	1,132,067	4,268,206	2,642,880
Product revenue, net | Human Health
Segment Information
Revenue from external customers	957,059	1,107,682	4,184,912	2,545,121
Product revenue, net | Animal Health
Segment Information
Revenue from external customers	15,720	$ 24,385	83,294	$ 275,148
Operating Segments
Segment Information
Segment assets	$ 98,368,806		$ 98,368,806		$ 92,879,528