Warranty Reserves (Tables)

9 Months Ended

Sep. 30, 2018

Guarantees and Product Warranties [Abstract]

Schedule of Product Warranty Liability

The following table summarizes warranty activity for the three and nine months ended September 30, 2018 and 2017 (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
Warranty accrual at beginning of period	$	449		$	457		$	521		$	645
Charged to expense		18			144			83			319
Claims paid, net of recoveries		(26	)		(20	)		(142	)		(392	)
Foreign currency adjustment		8			3			(13	)		12
Warranty accrual at end of period	$	449		$	584		$	449		$	584