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Note 9 - Commitments and Contingencies - Changes in Product Warranty Liability (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Accrued warranty obligations – beginning $ 887 $ 547
Accruals for warranties issued 93 141
Settlements made (6) (49)
Accrued warranty obligations – ending $ 974 $ 639