Note O - Derivative Financial Instruments (Details Textual) $ in Thousands	3 Months Ended
Sep. 27, 2019 USD ($)	Jun. 30, 2019 USD ($)	Sep. 28, 2018 USD ($)	Jun. 30, 2018 USD ($)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance	$ 173,363	$ 182,818	$ 178,460	$ 143,616
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	136
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance	$ (652)	$ (509)
Interest Rate Swap [Member]
Derivative, Number of Instruments Held, Total	1
Foreign Exchange Forward [Member]
Derivative, Number of Instruments Held, Total	0	0

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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The number of derivative instruments of a particular group held by the entity.

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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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