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Note 9 - Warranties - Changes in Warranty Reserve (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2018
Jun. 30, 2018
Balance at beginning of year $ 4,966 $ 4,667
Acquisitions and other (111) (138)
Warranty expense 2,345 6,248
Warranty claims (2,488) (5,811)
Balance at end of period $ 4,712 $ 4,966