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Note M - Pension and Other Postretirement Benefit Plans - Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Fair value of assets, Balance $ 6,302 $ 6,646
Relating to assets still held at reporting date 184 (452)
Purchases, sales and settlements, net 203 108
Fair value of assets, Balance $ 6,688 $ 6,302