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Note 3 - Acquisitions - Preliminary Purchase Price Allocation for Businesses Acquired (Details) (Parentheticals) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2017 | Jan. 31, 2016 | Jan. 31, 2015
MK Data [Member] |  |  |
Cash acquired |  | $ 345 |
BearWare [Member] |  |  |
Cash acquired |  | 243 |
Pixie Software GmbH [Member] |  |  |
Cash acquired | $ 688 |  |
Oz [Member] |  |  |
Cash acquired |  | $ 870 |
Appterra LLC [Member] |  |  |
Cash acquired | 66 |  |
4Solututions Information Technology [Member] |  |  |
Cash acquired | 281 |  |
Computer Management [Member] |  |  |
Cash acquired |  |  | $ 112
Datamyne Inc [Member] |  |  |
Cash acquired | $ 2,637 |  |
Customs Info [Member] |  |  |
Cash acquired |  |  |
Airclic [Member] |  |  |
Cash acquired |  |  | 117
e-customs [Member] |  |  |
Cash acquired |  |  | 1,983
Pentant Limited (Pentant) [Member] |  |  |
Cash acquired |  |  | $ 21

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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 -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: 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=66902209&loc=d3e3179-108585 + Details
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