Commitments and Contingencies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Product Liability Contingency [Line Items]
Other commitments, due in next twelve months	$ 2.2
Term commitments are incurred	12 months
Drug Supplier Project Plan [Member]
Product Liability Contingency [Line Items]
Other commitments	$ 2.2
Manufacture of Drug Substance [Member]
Product Liability Contingency [Line Items]
Other commitments	0.8
Manufacturer of Prexigebersen [Member]
Product Liability Contingency [Line Items]
Other commitments	1.1
Manufacturing Development [Member]
Product Liability Contingency [Line Items]
Other commitments	0.1
Testing Services [Member]
Product Liability Contingency [Line Items]
Other commitments	$ 0.2