Intangible Assets, Net - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 23,850	$ 23,100
Accumulated Amortization	(13,179)	(10,183)
Accumulated Impairment Charges	0	0
Net Book Value	$ 10,671	$ 12,917
Ryanodex intangible
Finite-Lived Intangible Assets [Line Items]
Useful Life (In Years)	18 years 6 months	20 years
Gross Carrying Amount	$ 15,000	$ 15,000
Accumulated Amortization	(5,079)	(3,500)
Accumulated Impairment Charges	0	0
Net Book Value	$ 9,921	$ 11,500
Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Life (In Years)	5 years	5 years
Gross Carrying Amount	$ 8,100	$ 8,100
Accumulated Amortization	(8,100)	(6,683)
Accumulated Impairment Charges	0	0
Net Book Value	$ 0	$ 1,417
Vasopressin Milestone
Finite-Lived Intangible Assets [Line Items]
Useful Life (In Years)	1 year
Gross Carrying Amount	$ 750
Accumulated Amortization	0
Accumulated Impairment Charges	0
Net Book Value	$ 750