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Note 19 - Insurance Proceeds (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Other Operating Income (Expense) [Member] | Catastrophe [Member] | Massachusetts [Member]      
Gain on Business Interruption Insurance Recovery   $ 400 $ 3,500
Other Operating Income (Expense) [Member] | Death of Former Executive [Member]      
Proceeds from Life Insurance Policies     3,400
Catastrophe [Member] | Massachusetts [Member]      
Proceeds from Insurance Settlement, Operating Activities     4,500
Tangible Asset Impairment Charges     1,000
Proceeds from Life Insurance Policies $ 3,654