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Note 16 - Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
UNITED STATES      
Service Cost $ 5 $ 4 $ 3
Interest Cost 7,320 7,439 9,083
Expected return on plan assets (13,038) (13,012) (13,150)
Recognized net actuarial loss 5,534 5,933 5,101
Amortization of prior service cost (benefit) 0 0 0
Net periodic benefit cost (benefit) (179) 364 1,037
Foreign Plan [Member]      
Service Cost 231 217 236
Interest Cost 768 725 846
Expected return on plan assets (855) (629) (868)
Recognized net actuarial loss 336 757 651
Amortization of prior service cost (benefit) (4) (5) (5)
Net periodic benefit cost (benefit) $ 476 $ 1,065 $ 860