Note E - Other Comprehensive Loss - Other Comprehensive (Loss) Income (Details) - USD ($)	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Balance	$ 76,084,000	$ 68,248,000
ASU 2018-02 Adjustment
Balance	71,375,000	76,084,000
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance	(491,000)	(387,000)
ASU 2018-02 Adjustment	(74,000)
OCI/OCL before reclassifications	(404,000)	(144,000)
Amounts reclassified from OCI	(20,000)	3,000
Tax effect of OCI activity	101,000	37,000
Net current period OCI/OCL	(397,000)	(104,000)
Balance	(888,000)	(491,000)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Balance	783,000	(191,000)
ASU 2018-02 Adjustment	(54,000)
OCI/OCL before reclassifications	1,400,000	4,251,000
Amounts reclassified from OCI	(2,747,000)	(2,966,000)
Tax effect of OCI activity	323,000	(311,000)
Net current period OCI/OCL	(1,078,000)	974,000
Balance	(295,000)	783,000
AOCI Attributable to Parent [Member]
Balance	292,000	(578,000)
ASU 2018-02 Adjustment	(128,000)
OCI/OCL before reclassifications	988,000	4,107,000
Amounts reclassified from OCI	(2,759,000)	(2,963,000)
Tax effect of OCI activity	424,000	(274,000)
Net current period OCI/OCL	(1,475,000)	870,000
Balance	$ (1,183,000)	$ 292,000

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

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