Warranties (Tables)

3 Months Ended

Mar. 31, 2019

Warranties [Abstract]

Warranty liability and related activity

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

	Three-Month Periods Ended March 31,
	2019			2018
Beginning balance	$	656		$	858
Warranty provisions		30			30
Warranty claims		(33	)		(11	)
Adjustments to preexisting warranties		(81	)		(102	)
Currency		1			2
Ending balance	$	573		$	777