XML 74 R63.htm IDEA: XBRL DOCUMENT v3.19.2
Note 11 - Accounts Payable and Accrued Expenses - Product Warranty Activity (Details) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Balance at beginning of period $ 1,545 $ 1,769
Change in accruals for warranties during the period 85 104
Settlements during the period (24) (121)
Balance at end of period $ 1,606 $ 1,752