Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Sep. 30, 2019
Issuance price per share		$ 6.50
Issuance costs		$ 0.2
Common Stock
Issuance price per share	$ 10.50
Issuance costs	$ 2.0
Series B-1 Convertible Preferred Stock
Issuance price per share	$ 10,500
Issuance costs	$ 2.6
Series B-2 Convertible Preferred Stock
Issuance price per share	$ 10,500
Issuance costs	$ 0.4
Series A Convertible Preferred Stock
Issuance price per share		$ 3,250

Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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