Note D - Goodwill and Other Intangibles (Details Textual) $ in Thousands	12 Months Ended
Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)
Goodwill, Ending Balance	$ 2,692	$ 2,585	$ 5,120
Goodwill, Impairment Loss		2,550	7,602
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	13 years
Amortization of Intangible Assets, Total	$ 149	168	$ 165
Indefinite-lived Intangible Assets (Excluding Goodwill), Ending Balance	202	$ 205
European Industrial [Member]
Goodwill, Ending Balance	$ 2,692
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	87.00%
Goodwill, Impairment Loss	$ 0
Measurement Input, Discount Rate [Member]
Goodwill, Measurement Input	0.14

Value of input used to measure goodwill.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Percentage of fair value of reporting unit in excess of carrying amount.

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