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Note 17 - Retirement Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
United States Pension Plan of US Entity [Member]      
Service Cost $ 70 $ 211 $ 233
Interest Cost 11,489 10,476 11,241
Expected return on plan assets (13,864) (13,954) (13,513)
Recognized net actuarial loss 3,979 3,945 3,941
Amortization of prior service cost (benefit) 14 54 57
Curtailment 244
Net periodic benefit cost (benefit) 1,688 976 1,959
Foreign Pension Plan [Member]      
Service Cost 34 44 46
Interest Cost 1,428 1,618 1,723
Expected return on plan assets (1,294) (1,474) (1,532)
Recognized net actuarial loss 835 750 819
Amortization of prior service cost (benefit) (49) (53) (60)
Curtailment
Net periodic benefit cost (benefit) $ 954 $ 885 $ 996