XML 40 R30.htm IDEA: XBRL DOCUMENT v3.21.2
Note 6 - Product Warranties - Product Warranties (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Balance at beginning of year $ 1,361 $ 1,438
Provision 1,317 925
Claims (1,248) (965)
Balance at end of period $ 1,430 $ 1,398