Note 3 - Property & Equipment - Property & Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Property and equipment, gross	$ 49,235	$ 49,141
Less accumulated depreciation	(31,118)	(30,898)
Property and equipment, net	18,117	18,243
Land [Member]
Property and equipment, gross	7,687	7,706
Land Improvements [Member]
Property and equipment, gross	13,455	13,456
Building [Member]
Property and equipment, gross	20,546	20,502
Machinery and Equipment [Member]
Property and equipment, gross	6,956	6,949
Construction in Progress [Member]
Property and equipment, gross	$ 591	$ 528