Warranty Accrual (Tables)

6 Months Ended

Jul. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Warranty claim activity

The following is a summary of the Company’s warranty claim activity for the three months and six months ended July 31, 2013 and 2012 (in thousands):

	Three Months Ended						Six Months Ended
	7/31/2013			7/31/2012			7/31/2013			7/31/2012
	(In thousands)
Beginning accrued warranty balance	$	1,000		$	1,400		$	1,000		$	1,400
Provision	75			88			216			199
Costs incurred	(75		)	(188		)	(216		)	(299		)
Ending accrued warranty balance	$	1,000		$	1,300		$	1,000		$	1,300