Stock-Based Compensation, Warrants (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Nov. 06, 2019	Oct. 25, 2019	Dec. 31, 2018
Class of Warrant or Right [Abstract]
Exercise price of warrants (in dollars per share)		$ 0.9942	$ 1.41
Warrants [Member]
Class of Warrant or Right [Abstract]
Warrants outstanding (in shares)	6,948,466			599,293
Warrants [Member] | Minimum [Member]
Class of Warrant or Right [Abstract]
Exercise price of warrants (in dollars per share)	$ 0.99
Warrants exercisable period	9 months
Warrants [Member] | Maximum [Member]
Class of Warrant or Right [Abstract]
Exercise price of warrants (in dollars per share)	$ 43,848
Warrants exercisable period	5 years 6 months