Note B - Acquisitions - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Feb. 14, 2025	May 31, 2024
Kobelt Manufacturing Co. [Member]
Property, plant and equipment	$ 5,031
Property, plant and equipment at book value	2,156
Step-up	2,875
Kobelt Manufacturing Co. [Member] | Dies, Tools and Fixtures [Member]
Property, plant and equipment	2,976
Kobelt Manufacturing Co. [Member] | Machinery and Equipment [Member]
Property, plant and equipment	1,718
Kobelt Manufacturing Co. [Member] | Property, Plant and Equipment, Other Types [Member]
Property, plant and equipment	$ 337
Katsa Oy [Member]
Property, plant and equipment		$ 13,853
Property, plant and equipment at book value		5,333
Step-up		8,520
Katsa Oy [Member] | Building [Member]
Property, plant and equipment		7,560
Katsa Oy [Member] | Land [Member]
Property, plant and equipment		894
Katsa Oy [Member] | Equipment [Member]
Property, plant and equipment		$ 5,399