Stockholders' Equity - Schedule of Common Stock Warrants Outstanding (Details)	3 Months Ended
	Mar. 31, 2020 $ / shares shares
Class of Warrant or Right [Line Items]
Shares underlying outstanding warrants (in shares)	2,034,643
Warrants Expiring on December 1, 2021
Class of Warrant or Right [Line Items]
Shares underlying outstanding warrants (in shares)	2,906
Exercise price (in usd per share) | $ / shares	$ 120.4
Expiration Date	Dec. 01, 2021
Warrants Expiring on December 6, 2021
Class of Warrant or Right [Line Items]
Shares underlying outstanding warrants (in shares)	3,737
Exercise price (in usd per share) | $ / shares	$ 120.4
Expiration Date	Dec. 06, 2021
Warrants Expiring on April 4, 2026
Class of Warrant or Right [Line Items]
Shares underlying outstanding warrants (in shares)	6,500
Exercise price (in usd per share) | $ / shares	$ 10
Expiration Date	Apr. 04, 2026
Warrants Expiring on February 15, 2023
Class of Warrant or Right [Line Items]
Shares underlying outstanding warrants (in shares)	2,021,500
Exercise price (in usd per share) | $ / shares	$ 0.98
Expiration Date	Feb. 15, 2023