Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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Note N - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		$ (3,803)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		27.56%	34.00%	34.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability		$ 3,786
Undistributed Earnings of Foreign Subsidiaries		4,077
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		816
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total		$ 93	$ 94
Foreign Tax Authority [Member] \| Earliest Tax Year [Member]
Open Tax Year		2014
Foreign Tax Authority [Member] \| Latest Tax Year [Member]
Open Tax Year		2018
Domestic Tax Authority [Member] \| Earliest Tax Year [Member]
Open Tax Year		2015
State and Local Jurisdiction [Member] \| Earliest Tax Year [Member] \| Wisconsin Department of Revenue [Member]
Open Tax Year		2010
State and Local Jurisdiction [Member] \| Latest Tax Year [Member] \| Wisconsin Department of Revenue [Member]
Open Tax Year		2013
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%