Agreements Related to Intellectual Property (Details)	1 Months Ended				3 Months Ended			6 Months Ended
	Oct. 31, 2019 USD ($) installment	Nov. 30, 2018 USD ($) shares	Aug. 31, 2017 USD ($)	Aug. 31, 2015	Jun. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Agreements Related to Intellectual Property
Revenue, Net					$ 2,046,000		$ 886,000	$ 3,453,000	$ 2,149,000
EPI Health LLC
Agreements Related to Intellectual Property
Potential milestone payments					20,000			20,000
Percentage of upfront and license fees	25.00%
Term of agreement	10 years
EPI Health LLC | Royalty
Agreements Related to Intellectual Property
Revenue, Net								411,000	$ 0
Rigel
Agreements Related to Intellectual Property
Potential milestones payable	$ 10,500,000					$ 10,000,000
Milestone payment						$ 4,000,000
Aggregate milestone payments					$ 80,000,000			$ 80,000,000
Amendment fees payable	$ 1,500,000
Number of installments | installment	3
Amendment fees payable, per installment	$ 500,000
License and Collaboration Agreement
Agreements Related to Intellectual Property
Term of agreement				10 years
Agreement and Plan of Merger | Confluence
Agreements Related to Intellectual Property
Payment in cash		$ 2,500,000
Number of shares | shares		253,208
Fair value of common stock		$ 2,200,000
Additional contingent consideration based on milestones, maximum, per Agreement			$ 75,000,000
Royalty term			10 years