Stock-Based Compensation and Warrants - Summary of all warrant activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Stock-Based Compensation and Warrants
Number of Warrants, Beginning Balance	18,915,851	915,138
Number of Warrants, Granted		18,000,713
Number of Warrants, Exercised	0	0
Number of Warrants, Forfeited	(200,852)
Number of Warrants, Ending Balance	18,714,999	18,915,851
Weighted Average Exercise Price, Beginning Balance	$ 3.85	$ 52.50
Weighted Average Exercise Price, Granted		1.38
Weighted Average Exercise Price, Exercised	0	0
Weighted Average Exercise Price, Forfeited	61.25
Weighted Average Exercise Price, Ending Balance	$ 3.24	$ 3.85