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Note 16 - Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
UNITED STATES      
Service Cost $ 0 $ 5 $ 4
Interest Cost 9,586 7,320 7,439
Expected return on plan assets (11,973) (13,038) (13,012)
Recognized net actuarial loss 3,814 5,534 5,933
Amortization of prior service cost (benefit) 0 0 0
Net periodic benefit cost (benefit) 1,427 (179) 364
Foreign Plan [Member]      
Service Cost 176 231 217
Interest Cost 1,039 768 725
Expected return on plan assets (943) (855) (629)
Recognized net actuarial loss (57) 336 757
Amortization of prior service cost (benefit) (4) (4) (5)
Net periodic benefit cost (benefit) $ 211 $ 476 $ 1,065