Note 5 - Long-lived Assets - Long-lived Assets, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Equipment [Member]
Property, Plant and Equipment, Gross	$ 1,034	$ 485
Machinery and Equipment [Member]
Property, Plant and Equipment, Gross	3,734	0
Land and Building [Member]
Property, Plant and Equipment, Gross	7,000	0
Other Equipment and Fixtures [Member]
Property, Plant and Equipment, Gross	428	110
Purchase deposits and Construction in Progress [Member]
Property, Plant and Equipment, Gross	100	650
Equipment and Software [Member]
Property, Plant and Equipment, Gross	12,296	1,245
Accumulated depreciation	(356)	(95)
Property, Plant and Equipment, Net	$ 11,941	$ 1,150