Subsequent Events (Details Textual) - Subsequent Event [Member] - USD ($) $ in Millions		1 Months Ended
	Nov. 01, 2022	Oct. 31, 2022
Seqirus, Inc [Member] | Research Collaboration And Exclusive License Agreement [Member]
Subsequent Event [Line Items]
Upfront payment to be received	$ 200
Seqirus, Inc [Member] | Research Collaboration And Exclusive License Agreement [Member] | Maximum [Member]
Subsequent Event [Line Items]
Eligible to receive development milestone payment	1,300
Eligible to receive commercial milestone payment	$ 3,000
Seqirus, Inc [Member] | Research Collaboration And Exclusive License Agreement [Member] | COVID-19 Vaccine [Member]
Subsequent Event [Line Items]
Net profits percentage	40.00%
Janssen [Member]
Subsequent Event [Line Items]
Notice period of termination		60 days