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Retirement plans Plan assets (Tables) | 12 Months Ended
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Jan. 31, 2018
Retirement Benefits [Abstract] |
Schedule of Allocation of Plan Assets [Table Text Block] |
(In thousands) | 2017 |  | 2016 |
Level 1 market value of plan assets |  |
Equity securities | $3,819 | $3,000
U.S. bond market | 1,843 | 2,188
Real estate securities | 199 |  | 214 |
Subtotal | 5,861 | 5,402
Level 2 significant other observable inputs |  |
Money market fund | $171 | $306
Subtotal | 171 | 306
Investments measured at net asset value* | $668 | $520
Total | $6,700 | $6,228

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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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