Warranty Accrual (Tables)

9 Months Ended

Oct. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Warranty claim activity

The following is a summary of the Company’s warranty claim activity for the three and nine months ended October 31, 2012 and 2011 (in thousands):

	Three Months Ended						Nine Months Ended
	10/31/2012			10/31/2011			10/31/2012			10/31/2011
	(In thousands)
Beginning accrued warranty balance	$	1,300		$	1,800		$	1,400		$	2,300
Provision	(175		)	(184		)	24			(176		)
Costs incurred	(125		)	(216		)	(424		)	(724		)
Ending accrued warranty balance	$	1,000		$	1,400		$	1,000		$	1,400