Stockholders Deficit - Additional Information (Details) - USD ($)			1 Months Ended			3 Months Ended			6 Months Ended
	Mar. 24, 2020	Feb. 25, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Nov. 30, 2019
Class Of Stock [Line Items]
Common stock, shares outstanding			67,093,683			67,093,683			67,093,683		58,090,233
Common stock, shares issued			67,093,683			67,093,683			67,093,683		58,090,233
Employee Stock Option
Class Of Stock [Line Items]
Unrecognized compensation expense			$ 1,800,000			$ 1,800,000			$ 1,800,000
Compensation expense period expected to be recognized									1 year 9 months 3 days
Restricted Stock Units R S U
Class Of Stock [Line Items]
Unrecognized compensation expense			$ 400,000			$ 400,000			$ 400,000
Compensation expense period expected to be recognized									1 year 10 months 13 days
Vested and unissued RSU awards, description									Vested and unissued awards at June 30, 2020 represents RSU awards for which the vesting date was June 30, 2020, but for which issuance of the awards occurred in July 2020.
Vested and unissued RSU awards vesting date									Jun. 30, 2020
Vested and unissued RSU awards issuance date									Jul. 31, 2020
Common Stock
Class Of Stock [Line Items]
Number of shares issued upon the conversion						2,750,000
Cantor Sales Agreement
Class Of Stock [Line Items]
Common stock price per share												$ 0.001
Exchange Agreement
Class Of Stock [Line Items]
Common stock, shares outstanding		4,110,000
Conversion of convertible preferred stock into common stock		100
Exchange Agreement | Series A Convertible Preferred Stock
Class Of Stock [Line Items]
Issuance of common stock, shares		10,170
Preferred stock, shares issued		41,100
Preferred stock, par value		$ 0.001
Issuance of common stock		$ 600,030
Stock issued, price per share		$ 59.00
Preferred stock, shares converted			27,500
Preferred stock, shares outstanding			23,770			23,770			23,770
Exchange Agreement | Common Stock
Class Of Stock [Line Items]
Number of shares issued upon the conversion			2,750,000
LP Purchase Agreement | Common Stock
Class Of Stock [Line Items]
Issuance of common stock, shares							615,384
Issuance of common stock							$ 615
Pre-funded Warrants
Class Of Stock [Line Items]
Exercise price of warrants			$ 0.01			$ 0.01			$ 0.01
Lincoln Park | LP Purchase Agreement
Class Of Stock [Line Items]
Common stock value right to sell, maximum	$ 20,000,000
Agreement term	36 months
Common stock, shares issued	615,384		0			0			0
Lincoln Park | LP Purchase Agreement | Selling, General and Administrative Expense
Class Of Stock [Line Items]
Commitment consideration and related transaction costs						$ 100,000		$ 0	$ 100,000	$ 0
Private Placement | Institutional Accredited Investors
Class Of Stock [Line Items]
Exercise price of warrants			$ 0.65		$ 0.65	$ 0.65			$ 0.65
Private Placement | Institutional Accredited Investors | Pre-funded Warrants
Class Of Stock [Line Items]
Issuance of warrants, shares			5,411,687		5,411,687	5,411,687			5,411,687
Number of securities called by warrants			5,411,687		5,411,687	5,411,687			5,411,687
Exercise price of warrants			$ 0.64		$ 0.64	$ 0.64			$ 0.64
Exercise price of warrants, exercisable subject to beneficial ownership limitations			$ 0.01		$ 0.01	$ 0.01			$ 0.01
Private Placement | Cantor Fitzgerald & Co. | Pre-funded Warrants
Class Of Stock [Line Items]
Number of securities called by warrants				3,176,762			3,176,762
Agent cash fee, percentage of gross proceeds from sale of warrants					6.00%
Net proceeds from sale of warrants				$ 31,768	$ 3,100,000
ATM Offering
Class Of Stock [Line Items]
Gross proceeds from issuance of common stock									$ 4,000,000
Payment of sales commissions									100,000
Net proceeds from issuance of common stock from the ATM Offering									$ 3,800,000
Issuance of common stock						$ 1,395,058	$ 2,435,912
ATM Offering | Common Stock
Class Of Stock [Line Items]
Issuance of common stock, shares						2,084,714	4,399,062		6,483,776
Deferred offering costs											$ 100,000
Issuance of common stock						$ 2,085	$ 4,399