Product Warranty

12 Months Ended

Dec. 31, 2021

Accrued Warranty [Abstract]

Product Warranty

11.  Product Warranty

Accrued warranty

For contracts that contain a warranty provision, we provide an accrual for estimated future warranty costs based on historical experience and projected claims. Our contracts may contain warranty provisions ranging from one year to five years. The current portion of the accrued warranty is presented separately on the consolidated balance sheets within current liabilities whereas the noncurrent portion is included in other liabilities.

The activity in the accrued warranty accounts is as follows:

(in thousands)	As of and for the
	years ended December 31,
	2021			2020
Beginning balance	$	922		$	1,323
Current year provision		(43	)		(205	)
Current year claims		(133	)		(203	)
Currency adjustment		2			7
Ending balance	$	748		$	922

The current and non-current warranty balance is as follows:

	December 31,
	2021		2020
Current	$	667	$	665
Non-current		81		257
Total Warranty	$	748	$	922