Warranties (Tables)

9 Months Ended

Sep. 30, 2021

Warranties [Abstract]

Warranty liability and related activity

Warranty liability and related activity consisted of the following (in thousands):

	Nine-Month Periods Ended September 30,
	2021			2020
Beginning balance	$	141		$	313
Warranty provisions		30			26
Warranty claims		(35	)		(53	)
Adjustments to preexisting warranties		(5	)		(146	)
Currency		(4	)		2
Ending balance	$	127		$	142