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Note 1 - Summary of Accounting Policies - Fair Values of Financial Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Foreign exchange contracts $ 3,232 $ 94
Interest rate swaps 3,958 1,038
Business Combination, Contingent Consideration, Liability [1] 2,108  
Foreign exchange contracts 399 11
Interest rate swaps 3,777  
Fair Value, Inputs, Level 1 [Member]    
Foreign exchange contracts
Interest rate swaps
Business Combination, Contingent Consideration, Liability [1]  
Foreign exchange contracts
Interest rate swaps  
Fair Value, Inputs, Level 2 [Member]    
Foreign exchange contracts 3,232 94
Interest rate swaps 3,958 1,038
Business Combination, Contingent Consideration, Liability [1]  
Foreign exchange contracts 399 11
Interest rate swaps 3,777  
Fair Value, Inputs, Level 3 [Member]    
Foreign exchange contracts
Interest rate swaps
Business Combination, Contingent Consideration, Liability [1] 2,108  
Foreign exchange contracts
Interest rate swaps  
Deferred Compensation Plan [Member]    
Marketable securities - deferred compensation plan 2,397 2,333
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 1 [Member]    
Marketable securities - deferred compensation plan 2,397 2,333
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 2 [Member]    
Marketable securities - deferred compensation plan
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 3 [Member]    
Marketable securities - deferred compensation plan
[1] The fair value of our contingent consideration arrangement is determined based on our evaluation as to the probability and amount of any deferred compensation that has been earned to date.