Stock Warrants (Details) - $ / shares		1 Months Ended
	Oct. 01, 2018	Dec. 26, 2017	Dec. 31, 2018	Dec. 31, 2017	Oct. 10, 2014
Closing stock price			$ 0.56	$ 17.85	$ 61.25
Closing Stock Price [Member]
Closing stock price	$ 0.88	$ 18.55
Expected Dividends [Member]
Warrants, Measurement Input	0.00%	0.00%
Expected Volatility [Member]
Warrants, Measurement Input	90.00%	85.00%
Risk Free Interest Rate [Member]
Warrants, Measurement Input	3.01%	2.42%
Expected Life Of Warrant [Member]
Expected life of warrant (years)	5 years	4 years 11 months 1 day