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Note 17 - Employee Benefits - Funded Status for US and Foreign Pension Plan (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
United States Pension Plan of US Entity [Member]      
Benefit obligation at beginning of year $ 252,215 $ 240,426  
Service cost 70 211 $ 233
Interest cost 11,489 10,476 11,241
Actuarial loss (gain) 20,964 16,570  
Benefits paid (15,576) (15,468)  
Foreign currency exchange rate  
Projected benefit obligation at end of year 269,162 252,215 240,426
Fair value of plan assets at beginning of year 204,710 216,043  
Actual return on plan assets 8,510 3,900  
Employer contribution 206 235  
Foreign currency exchange rate  
Fair value of plan assets at end of year 197,850 204,710 216,043
Funded Status (71,312) (47,505)  
Prepaid Benefit Cost  
Current liabilities (248) (199)  
Non-current liabilities (71,064) (47,306)  
Net amount recognized (71,312) (47,505)  
Unrecognized net actuarial loss 137,053 114,715  
Unrecognized prior service cost 14  
Accumulated other comprehensive income, pre-tax 137,053 114,729  
Foreign Pension Plan [Member]      
Benefit obligation at beginning of year 43,681 44,278  
Service cost 34 44 46
Interest cost 1,428 1,618 1,723
Actuarial loss (gain) 3,929 3,996  
Benefits paid (1,686) (1,455)  
Foreign currency exchange rate (5,566) (4,800)  
Projected benefit obligation at end of year 41,820 43,681 44,278
Fair value of plan assets at beginning of year 37,366 37,487  
Actual return on plan assets 3,670 3,410  
Employer contribution 1,264 1,336  
Foreign currency exchange rate (5,607) (3,412)  
Fair value of plan assets at end of year 35,007 37,366 $ 37,487
Funded Status (6,813) (6,315)  
Prepaid Benefit Cost 422 107  
Current liabilities (286) (313)  
Non-current liabilities (6,949) (6,109)  
Net amount recognized (6,813) (6,315)  
Unrecognized net actuarial loss 10,122 10,655  
Unrecognized prior service cost (81) (130)  
Accumulated other comprehensive income, pre-tax 10,041 10,525  
Fair value of plan assets at beginning of year 242,076    
Fair value of plan assets at end of year $ 232,857 $ 242,076