Warranty Accrual (Tables)

3 Months Ended

Apr. 30, 2017

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 ended April 30, 2017 and 2016.

	Three Months Ended
	4/30/2017			4/30/2016
	(In thousands)
Beginning balance	$	1,000		$	1,000
Provision	70			129
Costs incurred	(70		)	(129		)
Ending balance	$	1,000		$	1,000