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Note 9 - Warranties - Changes in Warranty Reserve (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2019
Jun. 30, 2019
Balance at beginning of year $ 5,278 $ 4,966
Acquisitions and other 10 (85)
Warranty expense 3,359 5,016
Warranty claims (2,994) (4,619)
Balance at end of period $ 5,653 $ 5,278