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Note 1 - Summary of Accounting Policies (Details) - Changes in Warranty Reserve - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Changes in Warranty Reserve [Abstract]      
Balance at beginning of year $ 6,941 $ 6,782 $ 5,767
Acquisitions 3 274 795
Warranty expense 11,086 3,937 4,282
Warranty claims (10,594) (4,052) (4,062)
Balance at end of year $ 7,436 $ 6,941 $ 6,782