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Note 4 - Fair Value Measurements - Fair Value Measurements (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Jun. 30, 2015
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 1 [Member]    
Marketable securities $ 2,369 $ 2,324
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 2 [Member]    
Marketable securities
Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 3 [Member]    
Marketable securities
Deferred Compensation Plan [Member]    
Marketable securities $ 2,369 $ 2,324
Fair Value, Inputs, Level 1 [Member]    
Foreign exchange contracts assets
Foreign exchange contracts liabilities
Interest rate swaps
Fair Value, Inputs, Level 2 [Member]    
Foreign exchange contracts assets $ 4 $ 844
Foreign exchange contracts liabilities 202 193
Interest rate swaps $ 943 $ 551
Fair Value, Inputs, Level 3 [Member]    
Foreign exchange contracts assets
Foreign exchange contracts liabilities
Interest rate swaps
Foreign exchange contracts assets $ 4 $ 844
Foreign exchange contracts liabilities 202 193
Interest rate swaps $ 943 $ 551