Accrued Liabilities (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Accrued Liabilities
Accrued Research & Development Expense	$ 99,259	$ 86,820
Accrued Compensation and Benefits	1,810,456	1,525,599
Accrued Legal Expenses	1,054,924	170,334
Accrued Marketing Expenses	771,656	5,000
Other Accrued Liabilities	2,535,745	3,342,008
Total Accrued Liabilities	$ 6,272,040	$ 5,129,761