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Note 3 - Acquisitions - Preliminary Purchase Price Allocation for Businesses Acquired (Details) (Parentheticals) - USD ($) | 12 Months Ended
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Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
ShipRush [Member] |  |  |
Cash acquired | $ 253,000 |  |
PCSTrac, Inc. [Member] |  |  |
Cash acquired | 0 |  |
MacroPoint LLC [Member] |  |  |
Cash acquired | 2,098,000 |  |
The 2018 Acquisitions [Member] |  |  |
Cash acquired |  |  |
Pixie Software GmbH [Member] |  |  |
Cash acquired |  | $ 688,000 |
Appterra LLC [Member] |  |  |
Cash acquired |  | 66,000 |
4Solututions Information Technology [Member] |  |  |
Cash acquired |  | 281,000 |
Datamyne Inc [Member] |  |  |
Cash acquired |  | $ 2,637,000 |
MK Data [Member] |  |  |
Cash acquired |  |  | $ 345
BearWare [Member] |  |  |
Cash acquired |  |  | 243
Oz [Member] |  |  |
Cash acquired |  |  | 870
The2016 Acquisitions [Member] |  |  |
Cash acquired |  |  |

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- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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