Note 4 - Supplemental Balance Sheet Information - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Property, plant and equipment, gross	$ 113,754	$ 112,916
Less: Accumulated depreciation	(73,637)	(72,519)
Property, plant and equipment, net	40,117	40,397
Land [Member]
Property, plant and equipment, gross	4,693	4,693
Building and Building Improvements [Member]
Property, plant and equipment, gross	30,382	30,179
Machinery and Equipment [Member]
Property, plant and equipment, gross	64,242	63,556
Furniture and Fixtures [Member]
Property, plant and equipment, gross	3,215	3,195
Computer Equipment [Member]
Property, plant and equipment, gross	8,595	8,164
Construction in Progress [Member]
Property, plant and equipment, gross	$ 2,627	$ 3,129

Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

Amount, after accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

+ References

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+ Details