Warranties (Tables)

9 Months Ended

Oct. 31, 2016

Product Warranties Disclosures [Abstract]

Warranties

Changes in the warranty accrual were as follows:

	Three Months Ended						Nine Months Ended
	October 31, 2016			October 31, 2015			October 31, 2016			October 31, 2015
Beginning balance	$	2,076		$	1,752		$	1,835		$	3,120
Accrual for warranties	202			571			1,288			1,319
Settlements made	(426		)	(684		)	(1,271		)	(2,800		)
Ending balance	$	1,852		$	1,639		$	1,852		$	1,639