Warrants - Schedule of Fair Value of Warrants Classified as Liabilities (Details)	12 Months Ended
	Dec. 31, 2020 $ / shares	Dec. 31, 2019 $ / shares
October 2013 Warrants [Member]
Strike price	$ 15.00	$ 15.00
October 2013 Warrants [Member] \| Expected Dividend Yield [Member]
Fair value assumptions, percentage	0.00	0.00
January 2014 Warrants [Member]
Strike price	$ 15.00	$ 15.00
January 2014 Warrants [Member] \| Expected Dividend Yield [Member]
Fair value assumptions, percentage	0.00	0.00
January 2014 Warrants [Member] \| Contractual Term (Years) [Member]
Warrant Expected term (years)	3 years	4 years
January 2014 Warrants [Member] \| Cumulative Volatility [Member]
Fair value assumptions, percentage	116.65	90.58
January 2014 Warrants [Member] \| Risk-Free Rate [Member]
Fair value assumptions, percentage	0.18	1.68
October 2013 Warrants [Member] \| Contractual Term (Years) [Member]
Warrant Expected term (years)	2 years 9 months 18 days	3 years 9 months 18 days
October 2013 Warrants [Member] \| Cumulative Volatility [Member]
Fair value assumptions, percentage	119.18	89.59
October 2013 Warrants [Member] \| Risk-Free Rate [Member]
Fair value assumptions, percentage	0.16	1.67