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Note 3 - Fair Value Measurements - Fair Values of Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Jun. 30, 2017
Foreign exchange contracts $ 1,108 $ 399
Interest rate swaps 469 3,777
Foreign exchange contracts 6,235 3,232
Interest rate swaps 13 3,958
Business Combination, Contingent Consideration, Liability [1] 3,513 2,108
Fair Value, Inputs, Level 1 [Member]    
Foreign exchange contracts
Interest rate swaps
Foreign exchange contracts
Interest rate swaps
Business Combination, Contingent Consideration, Liability [1]
Fair Value, Inputs, Level 2 [Member]    
Foreign exchange contracts 1,108 399
Interest rate swaps 469 3,777
Foreign exchange contracts 6,235 3,232
Interest rate swaps 13 3,958
Business Combination, Contingent Consideration, Liability [1]
Fair Value, Inputs, Level 3 [Member]    
Foreign exchange contracts
Interest rate swaps
Foreign exchange contracts
Interest rate swaps
Business Combination, Contingent Consideration, Liability [1] 3,513 2,108
Deferred Compensation Plan [Member]    
Marketable securities - deferred compensation plan 2,398 2,397
Marketable securities - deferred compensation plan 2,398 2,397
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 1 [Member]    
Marketable securities - deferred compensation plan 2,398 2,397
Marketable securities - deferred compensation plan 2,398 2,397
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 2 [Member]    
Marketable securities - deferred compensation plan
Marketable securities - deferred compensation plan
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 3 [Member]    
Marketable securities - deferred compensation plan
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.