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Note 18 - Industry Segment Information (Details) - Industry segments (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Note 18 - Industry Segment Information (Details) - Industry segments [Line Items]                      
Net Sales $ 183,275 $ 165,970 $ 168,629 $ 183,386 $ 169,800 $ 150,666 $ 154,868 $ 159,306 $ 701,260 $ 634,640 $ 581,369
Long-lived assets 95,020       82,563       95,020 82,563 88,750
United States [Member]
                     
Note 18 - Industry Segment Information (Details) - Industry segments [Line Items]                      
Net Sales                 515,918 490,302 468,688
Long-lived assets 61,367       62,984       61,367 62,984 68,114
Other Segments [Member]
                     
Note 18 - Industry Segment Information (Details) - Industry segments [Line Items]                      
Net Sales                 27,161 29,741 27,300
Long-lived assets 7,848       5,570       7,848 5,570 6,316
Asia [Member]
                     
Note 18 - Industry Segment Information (Details) - Industry segments [Line Items]                      
Net Sales                 47,451 25,122 31,067
Long-lived assets 3,859       2,325       3,859 2,325 2,182
Europe [Member]
                     
Note 18 - Industry Segment Information (Details) - Industry segments [Line Items]                      
Net Sales                 110,730 89,475 54,314
Long-lived assets $ 21,946       $ 11,684       $ 21,946 $ 11,684 $ 12,138