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Note 16 - Restructuring (Details Textual) - USD ($)
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Sale of Vacant Property [Member]      
Restructuring Costs $ 1,700,000    
Discontinued Product Line [Member]      
Restructuring Costs 700,000    
Restructuring Costs 4,232,000 $ 3,443,000 $ 10,077,000
Restructuring and Related Cost, Expected Cost $ 5.70