Warranty Accrual (Tables)

6 Months Ended

Jul. 31, 2018

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, 2018 and 2017.

	Three Months Ended						Six Months Ended
	7/31/2018			7/31/2017			7/31/2018			7/31/2017
	(In thousands)
Beginning balance	$	925		$	1,000		$	925		$	1,000
Provision	86			112			141			182
Costs incurred	(86		)	(112		)	(141		)	(182		)
Ending balance	$	925		$	1,000		$	925		$	1,000