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Significant accounting policies Accumulated other comprehensive loss (Tables) | 12 Months Ended
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Jan. 31, 2018
Accumulated other comprehensive loss [Abstract] |
Accumulated other comprehensive loss [Table Text Block] |
(In thousands) | 2017 | 2016
Equity adjustment foreign currency, gross |  | ($268 | ) |  | ($1,409 | )
Minimum pension liability, gross | (1,307) | (1,472)
Marketable security, gross | — |  | 142 |
Subtotal excluding tax effect | (1,575) | (2,739)
Tax effect of foreign exchange currency | (6) | (50)
Tax effect of minimum pension liability | 115 | 115
Tax effect of marketable security | — |  | (50)
Total accumulated other comprehensive loss | ($1,466) | ($2,724)

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- Definition Accumulated other comprehensive loss [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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