Warranties (Tables)

9 Months Ended

Oct. 31, 2013

Product Warranties Disclosures [Abstract]

Warranties

Changes in the warranty accrual were as follows:

	Three Months Ended						Nine Months Ended
	October 31, 2013			October 31, 2012			October 31, 2013			October 31, 2012
Beginning balance	$	2,047		$	1,949		$	1,888		$	1,699
Accrual for warranties	1,086			628			2,818			2,226
Settlements made (in cash or in kind)	(923		)	(698		)	(2,496		)	(2,046		)
Ending balance	$	2,210		$	1,879		$	2,210		$	1,879