Warrants to Purchase Common Stock (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Warrants
Warrants Outstanding, Beginning Balance	4,531,924	828,221
Warrants Granted		3,703,703
Warrants Outstanding, Ending Balance	4,531,924	4,531,924	828,221
Warrants Exercisable at end	4,531,924	4,531,924
Weighted Avg. Exercise Price
Weighted Avg. Exercise Price Outstanding, Beginning Balance	$ 0.72	$ 1.51
Warrants Granted		0.54
Weighted Avg. Exercise Price Outstanding, Ending balance	0.72	0.72	$ 1.51
Weighted Avg. Exercise Price Exercisable at end	$ 0.72	$ 0.72
Weighted-Average Remaining Contractual Term
Weighted-Average Remaining Contractual Term Outstanding	5 years 18 days	5 years 18 days	5 years 4 months 2 days
Weighted-Average Remaining Contractual Term Granted		4 years 11 months 26 days
Weighted-Average Remaining Contractual Term Exercisable at end	4 years 18 days	5 years 18 days