Note J - Shareholders' Equity - Reconciliation for the Reclassifications Out of Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income tax (benefit) expense	$ (4,169)	$ 3,711
Net (loss) income	(39,571)	10,796
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Actuarial losses	(2,982)	(2,710)
Transition asset and prior service benefit	195	176
Total before tax benefit	(2,787)	(2,534)
Income tax (benefit) expense	670	587
Net (loss) income	$ (2,117)	$ (1,947)