Warranties (Tables)

3 Months Ended

Mar. 31, 2021

Warranties [Abstract]

Warranty liability and related activity

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

	Three-Month Periods Ended March 31,
	2021			2020
Beginning balance	$	141		$	313
Warranty provisions		12			7
Warranty claims		(7	)		(23	)
Adjustments to preexisting warranties		(13	)		(75	)
Currency		(3	)		(2	)
Ending balance	$	130		$	220