Note K - Derivatives and Hedging (Details Textual) € in Millions, SFr in Millions, $ in Millions		3 Months Ended
	Aug. 18, 2021 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2024 EUR (€)	Sep. 30, 2024 CHF (SFr)	Aug. 23, 2021
Accumulated Other Comprehensive Income (Loss) Cumulative Cash Flow Hedges, Gain (Loss)		$ 0.1
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Term Loan [Member]
Debt Instrument, Face Amount	$ 10.0
Debt Instrument, Basis Spread on Variable Rate	1.80%
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivative, Notional Amount		12.2		SFr 10.3
Interest Rate Swap [Member]
Derivative, Fixed Interest Rate	2.40%				2.40%
Cash Flow Hedging [Member]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax		0.5
Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative, Notional Amount		$ 25.3	€ 23