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Note K - Derivatives and Hedging (Details Textual) € in Millions, SFr in Millions			3 Months Ended		9 Months Ended
	Feb. 13, 2024	Aug. 18, 2021 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2025 EUR (€)	Mar. 31, 2025 CHF (SFr)	Aug. 23, 2021
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]	Secured Overnight Financing Rate (SOFR) [Member]
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member]
Debt Instrument, Basis Spread on Variable Rate	2.25%	1.29%
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Term Loan [Member]
Debt Instrument, Face Amount		$ 10,000,000
Debt Instrument, Basis Spread on Variable Rate		1.80%
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member]
Derivative, Notional Amount			$ 17,400,000		$ 17,400,000		€ 15.8
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax					30,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax					6,000
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net			0	$ 0	0	$ 0
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings			0	$ 0	0	$ 0
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivative, Notional Amount			$ 11,200,000		$ 11,200,000			SFr 9.8
Interest Rate Swap [Member]
Derivative, Fixed Interest Rate		2.40%							2.40%

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