License Agreements (Details) - USD ($) $ in Millions	1 Months Ended
	Apr. 30, 2020	Oct. 31, 2017	Feb. 29, 2016
Licensing Agreement, Cedars-Sinai Medical Center, Healight
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
License agreement, term, after the first bona fide commercial sale of such licensed product in a country	10 years
License agreement, initial license fee paid	$ 0.3
License agreement, patent prosecution fees paid	$ 0.1
Settlement Agreement and Associated License Agreement, 2014, Shire LLC, New Drug Application
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
License agreement, up-front, non-refundable license fee paid, maximum			$ 1.0
License Agreement, 2017, Shire LLC, New Drug Application
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
License agreement, up-front, non-refundable license fee paid, maximum		$ 1.0