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Note 1 - Summary of Accounting Policies - Changes in Warranty Reserve (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Balance at beginning of year $ 9,085 $ 7,436 $ 6,941
Acquisitions and other charges 301 (5) 3
Warranty expense 9,203 13,503 11,086
Warranty claims (9,346) (11,849) (10,594)
Balance at end of year $ 9,243 $ 9,085 $ 7,436