Summary of Significant Accounting Policies - Revenue Recognition (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) item	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) agreement item	Sep. 30, 2021 USD ($)
Disaggregation of Product Revenue
Number of distribution agreements | agreement			2
Mytesi
Disaggregation of Product Revenue
Product revenue	$ 3,100,000	$ 406,000	$ 8,500,000	$ 1,800,000
Number of specialty pharmacies. | item	5		5
Mytesi | Specialty Pharmacies
Disaggregation of Product Revenue
Product revenue	$ 2,900,000	209,000	$ 7,500,000	434,000
Canalevia-CA1
Disaggregation of Product Revenue
Product revenue	12,000	0	143,000	0
Neonorm
Disaggregation of Product Revenue
Product revenue	$ 5,000	$ 15,000	$ 40,000	$ 54,000