Note S - Derivative Financial Instruments - Impact of the Company's Derivative Instruments on the Consolidated Statement of Operations and Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Unrealized gain (loss) on hedges	$ 46	$ 54
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Unrealized Gain (Loss) on Hedges [Member] | Cash Flow Hedging [Member]
Unrealized gain (loss) on hedges	(184)	332
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Interest Expense [Member]
Gain (loss) on derivative instruments	262	311
Euro Denominated Revolving Loan [Member] | Designated as Hedging Instrument [Member] | Unrealized Gain (Loss) on Hedges [Member] | Net Investment Hedging [Member]
Unrealized gain (loss) on hedges	$ 230	$ (278)