Stockholders' Equity (Details) - USD ($)			1 Months Ended		12 Months Ended
	May 01, 2019	Jun. 04, 2018	Feb. 28, 2019	Aug. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Aug. 14, 2018	Apr. 26, 2018
Class of Stock [Line Items]
Aggregate common stock in exchange for warrants (in shares)		1,968,736
Deemed dividends		$ 765,179			$ 86,207	$ 765,179
Convertible Notes
Class of Stock [Line Items]
Number of warrants issued (in shares)					15,459,016
Private Placement
Class of Stock [Line Items]
Purchase price per share (in usd per share)			$ 0.95
Cowen Agreement
Class of Stock [Line Items]
Shares issued in transaction					1,609,373
Proceeds from Issuance of Common Stock					$ 1,500,000
Registered Public Offering
Class of Stock [Line Items]
Purchase price per share (in usd per share)	$ 0.74
Shares issued in transaction	3,957,432
Proceeds from Issuance of Common Stock	$ 2,900,000
Over-Allotment Option
Class of Stock [Line Items]
Purchase price per share (in usd per share)								$ 1.15
Shares issued in transaction				10,288,800
Proceeds from Issuance of Common Stock				$ 10,900,000
Benjamin Samuels | Private Placement
Class of Stock [Line Items]
Shares issued in transaction			841,928
Gerald Budde | Private Placement
Class of Stock [Line Items]
Shares issued in transaction			26,310
Cowen Agreement
Class of Stock [Line Items]
Maximum offering value under 2017 cowen agreement							$ 25,000,000.0
Issuance shares of facility (in shares)						1,794,621
Issuance shares of facility						$ 3,700,000
Subscription Agreements
Class of Stock [Line Items]
Purchase of common stock (in shares)	116,496								531,066
Common stock purchase price									$ 1,400,000
Purchase price per share (in usd per share)									$ 2.72
Deemed dividends	$ 86,207
Shares issued in transaction			1,616,683
Proceeds from Issuance of Common Stock			$ 1,500,000
Minimum
Class of Stock [Line Items]
Strike price of warrants (in usd per share)		$ 2.62
Maximum
Class of Stock [Line Items]
Strike price of warrants (in usd per share)		$ 3.80