Note 5 - Property and Equipment, Net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property and equipment, gross	$ 18,951	$ 11,976
Less: accumulated depreciation	(2,478)	(1,629)
Property, plant and equipment, net	16,473	10,347
Operational Equipment [Member]
Property and equipment, gross	$ 3,551	3,581
Operational Equipment [Member] \| Minimum [Member]
Property and equipment, net, useful life (Year)	3 years
Operational Equipment [Member] \| Maximum [Member]
Property and equipment, net, useful life (Year)	10 years
Laboratory Equipment [Member]
Property and equipment, net, useful life (Year)	5 years
Property and equipment, gross	$ 1,128	817
Computer Equipment [Member]
Property and equipment, net, useful life (Year)	3 years
Property and equipment, gross	$ 107	89
Office Furniture and Equipment [Member]
Property and equipment, net, useful life (Year)	3 years
Property and equipment, gross	$ 87	90
Leasehold Improvements [Member]
Property and equipment, net, useful life (Year)	2 years 6 months
Property and equipment, gross	$ 80	80
Land [Member]
Property and equipment, gross	$ 1,141	1,141
Building [Member]
Property and equipment, net, useful life (Year)	39 years
Property and equipment, gross	$ 3,131	3,131
Construction in Progress [Member]
Property and equipment, gross	$ 9,726	$ 3,047