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Note 11 - Retirement Benefits (Details) - Net Periodic Benefit Cost (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Sep. 30, 2014
Sep. 30, 2013
United States Pension Plan of US Entity [Member]
   
Note 11 - Retirement Benefits (Details) - Net Periodic Benefit Cost [Line Items]    
Service cost $ 53 $ 85
Interest cost 2,619 2,810
Expected return on plan assets (3,489) (3,378)
Recognized net actuarial loss 986 1,172
Amortization of prior service cost 14 15
Net periodic benefit cost 183 704
Foreign Pension Plan [Member]
   
Note 11 - Retirement Benefits (Details) - Net Periodic Benefit Cost [Line Items]    
Service cost 12 11
Interest cost 432 414
Expected return on plan assets (392) (370)
Recognized net actuarial loss 200 196
Amortization of prior service cost (15)  
Net periodic benefit cost $ 237 $ 251