Warranty Accrual (Tables)

6 Months Ended

Jul. 31, 2015

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

The following is a summary of the Company’s warranty-claim activity for the three months and six months ended July 31, 2015 and 2014.

	Three Months Ended						Six Months Ended
	7/31/2015			7/31/2014			7/31/2015			7/31/2014
	(In thousands)
Beginning balance	$	950		$	1,000		$	950		$	1,000
Provision	112			83			193			218
Costs incurred	(62		)	(83		)	(143		)	(218		)
Ending balance	$	1,000		$	1,000		$	1,000		$	1,000