Warranty Accrual (Tables)

9 Months Ended

Oct. 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 nine months ended October 31, 2013 and 2012 (in thousands):

	Three Months Ended						Nine Months Ended
	10/31/2013			10/31/2012			10/31/2013			10/31/2012
	(In thousands)
Beginning accrued warranty balance	$	1,000		$	1,300		$	1,000		$	1,400
Provision	17			(175		)	233			24
Costs incurred	(117		)	(125		)	(333		)	(424		)
Ending accrued warranty balance	$	900		$	1,000		$	900		$	1,000