Warranty Accrual (Tables)

6 Months Ended

Jul. 31, 2016

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, 2016 and 2015.

	Three Months Ended						Six Months Ended
	7/31/2016			7/31/2015			7/31/2016			7/31/2015
	(In thousands)
Beginning balance	$	1,000		$	950		$	1,000		$	950
Provision	47			112			176			193
Costs incurred	(47		)	(62		)	(176		)	(143		)
Ending balance	$	1,000		$	1,000		$	1,000		$	1,000