Note D - Other Comprehensive Loss - Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Beginning balance			$ 68,248	$ 61,148
Ending balance	$ 77,029	$ 62,838	77,029	62,838
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Beginning balance	(387)	(491)	(387)	(491)
OCI/OCL before reclassifications
Amounts reclassified from OCI
Tax effect of OCI activity
Net current period OCI/OCL
Ending balance	(387)	(491)	(387)	(491)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Beginning balance	1,044	(1,745)	(191)	(414)
OCI/OCL before reclassifications	1,492	(987)	4,221	(3,430)
Amounts reclassified from OCI	(940)	768	(2,060)	1,133
Tax effect of OCI activity	(128)		(502)	747
Net current period OCI/OCL	424	(219)	1,659	(1,550)
Ending balance	1,468	(1,964)	1,468	(1,964)
AOCI Attributable to Parent [Member]
Beginning balance	657	(2,236)	(578)	(905)
OCI/OCL before reclassifications	1,492	(987)	4,221	(3,430)
Amounts reclassified from OCI	(940)	768	(2,060)	1,133
Tax effect of OCI activity	(128)		(502)	747
Net current period OCI/OCL	424	(219)	1,659	(1,550)
Ending balance	$ 1,081	$ (2,455)	$ 1,081	$ (2,455)

Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.

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