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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, 2017
Jun. 30, 2016
Jun. 30, 2015
Fair value of plan assets at beginning of year $ 232,857    
Fair value of plan assets at end of year 232,249 $ 232,857  
UNITED STATES      
Benefit obligation at beginning of year 269,162 252,215  
Service cost 3 70 $ 211
Interest cost 10,451 11,489 10,476
Actuarial loss (gain) (3,624) 20,964  
Benefits paid (16,029) (15,576)  
Foreign currency exchange rate  
Projected benefit obligation at end of year 259,963 269,162 252,215
Fair value of plan assets at beginning of year 197,850 204,710  
Actual return on plan assets 13,223 8,510  
Employer contribution 284 206  
Benefits paid (16,029) (15,576)  
Foreign currency exchange rate  
Fair value of plan assets at end of year 195,328 197,850 204,710
Funded Status (64,635) (71,312)  
Prepaid Benefit Cost  
Current liabilities (220) (248)  
Non-current liabilities (64,415) (71,064)  
Net amount recognized (64,635) (71,312)  
Unrecognized net actuarial loss 129,207 137,053  
Unrecognized prior service cost  
Accumulated other comprehensive income, pre-tax 129,207 137,053  
Foreign Plan [Member]      
Benefit obligation at beginning of year 41,820 43,681  
Service cost 37 34 44
Interest cost 1,022 1,428 1,618
Actuarial loss (gain) 1,016 3,929  
Benefits paid (1,352) (1,686)  
Foreign currency exchange rate (402) (5,566)  
Projected benefit obligation at end of year 42,141 41,820 43,681
Fair value of plan assets at beginning of year 35,007 37,366  
Actual return on plan assets 2,677 3,670  
Employer contribution 1,143 1,264  
Benefits paid (1,352) (1,686)  
Foreign currency exchange rate (554) (5,607)  
Fair value of plan assets at end of year 36,921 35,007 $ 37,366
Funded Status (5,220) (6,813)  
Prepaid Benefit Cost 1,324 422  
Current liabilities (330) (286)  
Non-current liabilities (6,330) (6,949)  
Net amount recognized (5,336) (6,813)  
Unrecognized net actuarial loss 8,484 10,122  
Unrecognized prior service cost (33) (81)  
Accumulated other comprehensive income, pre-tax $ 8,451 $ 10,041