Note 4 - Property & Equipment, Net - Property & Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Property and equipment, gross	$ 47,421	$ 54,340
Less accumulated depreciation	(30,071)	(36,939)
Property and equipment, net	17,350	17,401
Land [Member]
Property and equipment, gross	7,715	7,715
Land Improvements [Member]
Property and equipment, gross	12,213	13,158
Building [Member]
Property and equipment, gross	19,611	22,976
Machinery and Equipment [Member]
Property and equipment, gross	6,668	9,124
Construction in Progress [Member]
Property and equipment, gross	$ 1,214	$ 1,367