Note B - Acquisition of Katsa Oy - Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands		12 Months Ended
	May 31, 2024	Jun. 30, 2024	Jun. 30, 2023
Gain on bargain purchase		$ 3,724	$ 0
Katsa Oy [Member]
Cash	$ 2,700
Trade accounts receivable, net	7,400
Inventory	10,600
Prepaid expenses	300
Other	800
Property, plant and equipment, net	13,900
Right-of-use operating lease assets	500
Intangible assets, net	3,400
Accounts payable	1,800
Accrued liabilities	5,300
Lease obligations	400
Deferred income taxes	2,500
Total identified net assets acquired (in millions):	29,600
Gain on bargain purchase	3,700	$ 3,724	$ (0)
Purchase price consideration	$ 25,900