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Note B - Acquisitions - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands			12 Months Ended
	Feb. 14, 2025	May 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Intangible Assets			$ 3,471	$ 3,488
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)			7 years
Trade Names [Member]
Intangible Assets			$ 628	857
Customer Relationships [Member]
Intangible Assets			$ 1,187	$ 1,519
Kobelt Manufacturing Co. [Member]
Intangible Assets	$ 2,847
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill	2,847
Kobelt Manufacturing Co. [Member] \| Trade Names [Member]
Intangible Assets	$ 636
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)	20 years
Kobelt Manufacturing Co. [Member] \| Customer Relationships [Member]
Intangible Assets	$ 1,201
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)	15 years
Kobelt Manufacturing Co. [Member] \| Order or Production Backlog [Member]
Intangible Assets	$ 21
Kobelt Manufacturing Co. [Member] \| Order or Production Backlog [Member] \| Maximum [Member]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)	1 year
Kobelt Manufacturing Co. [Member] \| Computer Software, Intangible Asset [Member]
Intangible Assets	$ 71
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)	5 years
Kobelt Manufacturing Co. [Member] \| Developed Technology Rights [Member]
Intangible Assets	$ 918
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)	20 years
Katsa Oy [Member]
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill		$ 3,377
Katsa Oy [Member] \| Trade Names [Member]
Intangible Assets		$ 872
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)		10 years
Katsa Oy [Member] \| Customer Relationships [Member]
Intangible Assets		$ 1,525
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)		12 years
Katsa Oy [Member] \| Technology Know-How [Member]
Intangible Assets		$ 980
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)		7 years