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Warranty (Tables)
 12 Months Ended
Jan. 31, 2015
Standard Product Warranty Disclosure [Abstract]  
Warranty claim activity
The following is a summary of the Company’s warranty-claim activity during 2014 and 2013.
 
January 31,
(In thousands)
2015
 
2014
Beginning balance
$
1,000

 
$
1,000

Provision for current year
650

 
600

Provision for (benefits from) prior year
(258
)
 
(220
)
Costs incurred
(442
)
 
(380
)
Ending balance
$
950

 
$
1,000