Note B - Acquisitions - Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands			12 Months Ended
	Feb. 14, 2025	May 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Goodwill			$ 2,892	$ 0
Gain on bargain purchase			0	3,724
Kobelt Manufacturing Co. [Member]
Cash	$ 240
Trade accounts receivable	1,881
Inventories	5,984
Other current assets	290
Property, plant and equipment	5,031
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill	2,847
Accounts payable	(924)
Accrued liabilities	(520)
Deferred tax liability	(159)
Total identified net assets acquired:	14,670
Goodwill	2,806		2,806
Purchase price consideration	17,476
Cash	240
Trade accounts receivable, net	1,881
Inventories, net	5,984
Other	290
Property, plant and equipment, net	5,031
Intangible assets, net	2,847
Accounts payable	924
Accrued liabilities	520
Deferred income taxes	159
Total identified net assets acquired (in millions):	17,476
Purchase price consideration	$ 17,476
Katsa Oy [Member]
Cash		$ 2,706
Trade accounts receivable		7,400
Inventories		10,694
Other current assets		786
Property, plant and equipment		13,853
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill		3,377
Accounts payable		(1,822)
Accrued liabilities		(5,360)
Deferred tax liability		(2,435)
Purchase price consideration		29,608
Cash		2,706
Trade accounts receivable, net		7,400
Inventories, net		10,694
Prepaid expenses		312
Other		786
Property, plant and equipment, net		13,853
Right-of-use operating lease assets		507
Intangible assets, net		3,377
Accounts payable		1,822
Accrued liabilities		5,360
Lease obligations		410
Deferred income taxes		2,435
Total identified net assets acquired (in millions):		29,608
Gain on bargain purchase		3,724	$ (0)	$ 3,724
Purchase price consideration		$ 25,884