XML 33 R17.htm IDEA: XBRL DOCUMENT v3.8.0.1
Warranties
12 Months Ended
Jan. 31, 2018
Product Warranty Costs [Abstract]  
Warranties
NOTE 9
WARRANTIES

Changes in the warranty accrual were as follows:
 
 
For the years ended January 31,
 
 
2018
 
2017
 
2016
Beginning balance
 
$
1,547

 
$
1,835

 
$
3,120

Change in provision
 
1,762

 
1,597

 
1,945

Settlements made
 
(2,146
)
 
(1,885
)
 
(3,230
)
Ending balance
 
$
1,163

 
$
1,547

 
$
1,835