Commitments and Contingencies - 2014 Agreement (Details) - USD ($)		1 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Other Commitments [Line Items]
Pay fees equivalent			3.375%
Accrued liabilities			$ 243,560
Stock issued during the period (in shares)	11,788
Stock issued during the period				$ 16,777,666
Torreya
Other Commitments [Line Items]
Advisory fees			$ 995,370
Advisory Services
Other Commitments [Line Items]
Accrued liabilities		$ 151,000		151,000
Sponsor fees		$ 100,000		$ 447,000
Stock issued during the period (in shares)		6,498
Stock issued during the period		$ 200,000