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Note 11 - Accounts Payable and Accrued Expenses - Product Warranty Activity (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Balance at beginning of period $ 2,109 $ 1,641 $ 2,015 $ 1,545
Acquired warranty obligations 147 147
Change in accruals for warranties during the period 124 93 507 247
Settlements during the period (360) (28) (649) (86)
Balance at end of period $ 2,020 $ 1,706 $ 2,020 $ 1,706