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Note 17 - Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
UNITED STATES      
Service Cost $ 3 $ 70 $ 211
Interest Cost 10,451 11,489 10,476
Expected return on plan assets (13,761) (13,864) (13,954)
Recognized net actuarial loss 4,760 3,979 3,945
Amortization of prior service cost (benefit) 14 54
Curtailment 244
Net periodic benefit cost (benefit) 1,453 1,688 976
Foreign Plan [Member]      
Service Cost 37 34 44
Interest Cost 1,022 1,428 1,618
Expected return on plan assets (1,152) (1,294) (1,474)
Recognized net actuarial loss 1,016 835 750
Amortization of prior service cost (benefit) (48) (49) (53)
Curtailment
Net periodic benefit cost (benefit) $ 875 $ 954 $ 885