Warranties (Tables)

9 Months Ended

Oct. 31, 2014

Product Warranties Disclosures [Abstract]

Warranties

Changes in the warranty accrual were as follows:

	Three Months Ended						Nine Months Ended
	October 31, 2014			October 31, 2013			October 31, 2014			October 31, 2013
Beginning balance	$	2,617		$	2,047		$	2,525		$	1,888
Accrual for warranties	676			1,086			2,065			2,818
Settlements made (in cash or in kind)	(837		)	(923		)	(2,134		)	(2,496		)
Ending balance	$	2,456		$	2,210		$	2,456		$	2,210