Note O - Derivative Financial Instruments (Details Textual) $ in Thousands, € in Millions	9 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 20, 2022 USD ($)	Mar. 25, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 24, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2021 EUR (€)	Jun. 29, 2018 USD ($)
Equity, Including Portion Attributable to Noncontrolling Interest	$ 138,619	$ 131,188	$ 133,765	$ 124,768		$ 129,455	$ 127,931	$ 131,624	$ 130,660
Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months	239
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Equity, Including Portion Attributable to Noncontrolling Interest	561		$ 694	$ 704	$ 355	$ 178	$ (378)	$ (610)	$ (678)
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Equity, Including Portion Attributable to Noncontrolling Interest		355
Interest Rate Swap [Member]
Derivative, Number of Instruments Held, Total			1
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Bank of Montreal [Member]
Derivative, Notional Amount	12,000										$ 20,000
Equity, Including Portion Attributable to Noncontrolling Interest	561
Euro Denominated Revolving Loan [Member] | Net Investment Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative, Notional Amount | €										€ 6.5
Derivative, Gain (Loss) on Derivative, Net	$ (1,319)	$ (1,551)