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The Company and Basis of Presentation (Details) $ / shares in Units, $ in Thousands				2 Months Ended	12 Months Ended
	Apr. 13, 2020 USD ($) $ / shares shares	Aug. 11, 2019	Jul. 24, 2019	Jun. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Sale of Stock
Cash						$ 12,353	$ 13,908
Accumulated deficit						$ (47,034)	$ (36,866)
Reverse stock split, ratio		0.0001
Series A Redeemable Convertible Preferred Stock
Sale of Stock
Net proceeds					$ 16,800
Registered Offering
Sale of Stock
Issuance of common stock in connection with equity financing (in shares) | shares	750,000
Offering shares (Per share) | $ / shares	$ 10
Gross proceeds	$ 7,500
Convertible notes
Sale of Stock
Net proceeds					$ 500
Series B Redeemable Convertible Preferred Stock
Sale of Stock
Net proceeds				$ 24,200
Merger Agreement with NeuroBo
Sale of Stock
Reverse stock split, ratio			1.1431
Percentage of interest held by our exiting shareholders			96.20%

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