Warranties (Tables)

9 Months Ended

Oct. 31, 2015

Product Warranties Disclosures [Abstract]

Warranties

Changes in the warranty accrual were as follows:

	Three Months Ended						Nine Months Ended
	October 31, 2015			October 31, 2014			October 31, 2015			October 31, 2014
Beginning balance	$	1,752		$	2,617		$	3,120		$	2,525
Accrual for warranties	571			676			1,319			2,065
Settlements made	(684		)	(837		)	(2,800		)	(2,134		)
Ending balance	$	1,639		$	2,456		$	1,639		$	2,456