Accrued product warranty liability

9 Months Ended

Sep. 30, 2021

Accrued product warranty liability [Abstract]

Accrued product warranty liability

5. Accrued product warranty liability

We generally provide hardware warranties on our products for up to 24 months and record the estimated cost of such product warranties at the time the sale is recorded.  Estimated warranty costs are based upon actual past experience of product repairs and the related estimated cost of labor and material to make the necessary repairs.

The following table summarizes the activity recorded in the accrued product warranty liability during the nine months ended September 30, 2021 and 2020:

	Nine Months Ended
	September 30,
	2021			2020
	(In thousands)
Balance, beginning of period	$	140		$	215
Warranties issued		39			53
Warranty settlements		(70	)		(107	)
Balance, end of period	$	109		$	161

As of September 30, 2021, $88 thousand of the accrued product warranty liability was classified as current in “Accrued liabilities” in the Condensed Consolidated Balance Sheets and the remaining $21 thousand was classified as non-current in “Other liabilities”.