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PURCHASED INTANGIBLE ASSETS - Indefinite Lived Intangible Assets (Details) - Trade Name - USD ($) $ in Thousands | Jan. 31, 2016 | Jan. 31, 2015
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Roberts |  |
Indefinite-Lived Intangible Assets |  |
Indefinite-lived Intangible Assets | $ 4,499 |
SMC |  |
Indefinite-Lived Intangible Assets |  |
Indefinite-lived Intangible Assets | $ 181 | $ 181

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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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