Annual report pursuant to Section 13 and 15(d)

Note 12 - Segment Information - Financial Information Relating to Geographic Areas (Details)

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Note 12 - Segment Information - Financial Information Relating to Geographic Areas (Details) - USD ($)
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
UNITED STATES      
External sales $ 245,217,000 $ 190,359,000 $ 164,308,000
Europe [Member]      
External sales 134,077,000 97,157,000 88,297,000
United States and Canada 11,239,000 8,340,000 7,129,000
CHINA      
External sales 26,105,000 18,878,000 14,106,000
United States and Canada 1,286,000 678,000 117,000
Other Asia [Member]      
External sales 23,806,000 32,704,000 28,608,000
Rest of World [Member]      
External sales 23,041,000 18,665,000 15,256,000
United States and Canada [Member]      
United States and Canada 119,075,000 109,790,000 103,541,000
External sales 452,246,000 357,763,000 310,575,000
United States and Canada $ 131,600,000 $ 118,808,000 $ 110,787,000