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Note R - Derivative Financial Instruments (Details Textual) $ in Thousands, € in Millions	12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 EUR (€)	Jun. 30, 2019 USD ($)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance	$ 130,660	$ 139,958		$ 182,818
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	(346)
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Euro Denominated Revolving Loan [Member]
Derivative, Notional Amount | €			€ 13
Derivative, Gain (Loss) on Derivative, Net, Total	334	0
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance	$ (678)	$ (1,104)		$ (509)

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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