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Interest expense, net (Notes)
12 Months Ended
Jan. 31, 2018
Interest expense, net [Abstract]  
Interest Income and Interest Expense Disclosure [Text Block]
Note 14 - Interest expense, net
(In thousands)
2017

2016

Interest expense
$808
$746
Interest income
(111
)
(177
)
Interest expense, net
$697
$569