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Note 3 - Acquisitions (Details) shares in Thousands, £ in Millions |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 25, 2015 USD ($) | Jul. 22, 2015 USD ($) | Jul. 20, 2015 USD ($) | Dec. 05, 2014 USD ($) | Nov. 19, 2014 USD ($) | May. 30, 2014 USD ($) shares | Apr. 01, 2014 USD ($) | May. 02, 2013 USD ($) | Dec. 23, 2013 USD ($) | Dec. 20, 2013 USD ($) | Oct. 31, 2015 USD ($) | Jan. 31, 2016 USD ($) | Jan. 31, 2015 USD ($) shares | Jan. 31, 2014 USD ($) | Jan. 31, 2015 GBP (£)
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  | $ 1,416,000 | $ 1,666,000 | $ 1,308,000 |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 416 |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | 217,486,000 | $ 147,440,000 | 111,179,000 |
Oz [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred | $ 29,500,000 |  |  |  |  |  |  |  |  |  |  | 29,398,000 |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount | 300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value | $ 300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | 17,637,000 |  |  |
BearWare [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  | $ 11,200,000 |  |  |  |  |  |  |  |  |  | 11,224,000 |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  | 800,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  | 700,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | 4,958,000 |  |  |
MK Data [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  | $ 80,200,000 |  |  |  |  |  |  |  |  | 80,018,000 |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  | 1,300,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  | 1,200,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  | $ 3,100,000 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | 51,108,000 |  |  |
2016 Acquisitions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  | 120,640,000 |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  |  | 2,400,000 |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  |  | 7,700,000 |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | 73,703,000 |  |  |
2016 Acquisitions [Member] | Other Charges [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  | 1,200,000 |  |  |
Pentant Limited (Pentant) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  | $ 2,100,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  |  |  |  |  |  |  |  |  |  |  | 400,000 |  | £ 0.3
Business Combination, Contingent Consideration, Liability |  |  |  | 400,000 |  |  |  |  |  |  |  | $ 0 |  |  |
e-customs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  | 9,600,000 |  |  |  |  |  |  |  |  | 9,570,000 |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  | 200,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  | 200,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  | $ 1,200,000 |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  | 4,581,000 |  |
Airclic [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  | $ 29,600,000 |  |  |  |  |  |  |  | 29,279,000 |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  | 4,500,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  | $ 4,500,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Income Taxes Payable and Goodwill |  |  |  |  |  |  |  |  |  |  | $ 800,000 |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  | 12,480,000 |  |
Customs Info [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  | $ 39,500,000 |  |  |  |  |  |  | 38,690,000 |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  | 1,800,000 |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  | 1,700,000 |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  |  |  |  |  | 100,000 |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  |  |  |  | 3,900,000 |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  | $ 34,100,000 |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares) | shares |  |  |  |  |  | 400 |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned |  |  |  |  |  | $ 5,400,000 |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  | 26,135,000 |  |
Customs Info [Member] | Draw on Revolving Debt Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |
Computer Management [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  | $ 6,700,000 |  |  |  |  |  | 6,692,000 |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  | 200,000 |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  | 1,338,000 |  |
2015 Acquisitions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  |  | 86,352,000 |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  | 45,593,000 |  |
2015 Acquisitions [Member] | Other Charges [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000 |  |
Impatex [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  | $ 8,200,000 |  |  |  |  | 7,966,000 |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  |  |  | 300,000 |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  |  |  |  | 300,000 |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | $ 300,000 |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,501,000 |
Compudata [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  | $ 18,100,000 |  |  |  | 18,072,000 |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  |  |  |  | 600,000 |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  |  |  |  |  | 500,000 |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  |  |  |  |  |  |  |  |  | 100,000 |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  | $ 300,000 |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,201,000 |
KSD [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  | $ 32,400,000 |  |  |  |  |  | 30,206,000 |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  |  | 3,100,000 |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  |  |  | 2,600,000 |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  |  |  |  |  |  |  | 500,000 |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  | 700,000 |  |  |  |  |  |  |
Goodwill, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  |  |  |  | 700,000 |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,824,000 |
Business Combination, Increase (Decrease) in Net Working Capital Adjustments |  |  |  |  |  |  |  |  |  |  |  |  | 700,000 |  |
KSD [Member] | Draw on Revolving Debt Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  | $ 19,800,000 |  |  |  |  |  |  |
2014 Acquisitions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  |  |  | 56,244,000 |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  | 25,526,000 |
2014 Acquisitions [Member] | Other Charges [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,400,000 |
Increase From [Member] | KSD [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  | 13,100,000 |  |
Increase To [Member] | KSD [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  | 13,800,000 |  |
Decrease From [Member] | KSD [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Net Working Capital Adjustments |  |  |  |  |  |  |  |  |  |  |  |  | 2,900,000 |  |
Decrease To [Member] | KSD [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Net Working Capital Adjustments |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,200,000 |  |

X
- Definition The amount of increase (decrease) net working capital adjustments in a business combination. + References No definition available. + Details
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- Definition The amount of net working capital adjustments in a business combination. + References No definition available. + Details
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- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to income taxes payable and goodwill in connection with a business combination for which the initial accounting was incomplete. + References No definition available. + Details
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- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the fair value of the receivables acquired, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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