Warranties (Tables)

6 Months Ended

Jul. 31, 2019

Product Warranties Disclosures [Abstract]

Warranties

Changes in the warranty accrual were as follows:

	Three Months Ended						Six Months Ended
	July 31, 2019			July 31, 2018			July 31, 2019			July 31, 2018
Beginning balance	$	1,391		$	1,097		$	890		$	1,163
Change in provision	1,032			329			1,854			486
Settlements made	(684		)	(289		)	(1,005		)	(512		)
Ending balance	$	1,739		$	1,137		$	1,739		$	1,137