Stock-based Compensation - Additional Information (Details) - USD ($)		1 Months Ended	9 Months Ended
	Aug. 05, 2020	Apr. 30, 2020	Sep. 30, 2020		Dec. 31, 2019
Options held by the Company's CEO, Linda Powers:
Existing options that the Company's CEO has agreed to not exercise until the specified period (in shares)		39,200,000
Period during which the Company's CEO has agreed to not exercise the options		6 months
Extended contractual term of the options held by the Company's CEO		6 months
Incremental stock-based compensation for stock options modification	$ 300,000		$ 78,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized			$ 26,800,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years
Share-based compensation arrangement by share-based payment award, options, cancelled in period	1,750,000
Number of Shares, Outstanding	3,000,000		304,009		104,659
Weighted Average Exercise Price, Granted	$ 0.22		$ 0.25	[1],[2]

[1] The options granted during the nine months ended September 30, 2020 included options already approved at various times during the 3 years 2018 – 2020 but not issued until Q3 2020, and also included options that will vest for performance and milestones going forward over the next 2 years.  The options included awards to key external consultants and vendors in addition to internal parties.

[2] The weighted average exercise price of the Q3 2020 options was initially $0.25. However, subsequently, the exercise price was amended to a weighted average exercise price of $0.36.