Warranties (Tables)

9 Months Ended

Oct. 31, 2018

Product Warranties Disclosures [Abstract]

Warranties

Changes in the warranty accrual were as follows:

	Three Months Ended						Nine Months Ended
	October 31, 2018			October 31, 2017			October 31, 2018			October 31, 2017
Beginning balance	$	1,137		$	2,265		$	1,163		$	1,547
Change in provision	521			(274		)	1,007			1,504
Settlements made	(807		)	(774		)	(1,319		)	(1,834		)
Ending balance	$	851		$	1,217		$	851		$	1,217