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Note 3 - Acquisitions (Details Textual) - USD ($) shares in Thousands |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 23, 2016 | Nov. 11, 2016 | Oct. 12, 2016 | Apr. 29, 2016 | Nov. 25, 2015 | Jul. 22, 2015 | Jul. 20, 2015 | Dec. 05, 2014 | Nov. 19, 2014 | May 30, 2014 | Apr. 01, 2014 | Oct. 31, 2015 | Jan. 31, 2017 | Jan. 31, 2016 | Jan. 31, 2015 | Dec. 31, 2016 | Oct. 31, 2016
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  | $ 71,348,000 | $ 120,853,000 | $ 82,152,000 |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  |  | 3,019,000 | $ 1,416,000 | $ 1,666,000 |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  |  |  | 8,600,000 |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  |  |  | $ (400,000) |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 416 |  |
In Process Research and Development [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0 |  |
Other Charges [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |
Datamyne Inc [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 52,500,000 |  |  |  |  |  |  |  |  |  |  |  | 52,541,000 |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount | 1,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value | $ 1,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  |  | 52,173,000 |  |  |  |
4Solututions Information Technology [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | $ 2,500,000 |  |  |  |  |  |  |  |  |  |  | 2,456,000 |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  |  | 2,460,000 |  |  |  |
Appterra LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  | $ 5,700,000 |  |  |  |  |  |  |  |  |  | 5,703,000 |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  | 1,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,600,000
Business Combination, Contingent Consideration, Liability |  |  | $ 700,000 |  |  |  |  |  |  |  |  |  | 700,000 |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  |  | 6,248,000 |  |  |  |
Pixie Software GmbH [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  | $ 10,600,000 |  |  |  |  |  |  |  |  | 10,648,000 |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  | 600,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  | 400,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,622,000 |  |  |  |
Oz [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 29,459,000 |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  | $ 300,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  | 300,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  | $ 29,500,000 |  |  |  |  |  |  |  |  | 29,435 |  |  |
BearWare [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,243,000 |  |  |
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 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  | $ 11,200,000 |  |  |  |  |  |  |  | 11,224 |  |  |
MK Data [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 80,151,000 |  |  |
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 |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  | $ 80,200,000 |  |  |  |  |  |  | 80,067 |  |  |
The2016 Acquisitions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 120,853,000 |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  |  |  | 120,726 |  |  |
The2016 Acquisitions [Member] | Other Charges [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,200,000 |  |  |
Pentant Limited (Pentant) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,134,000 |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  |  |  | 100,000 |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  |  |  |  | 400,000 |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  | 2,100,000 |  |  |  |  |  |  | 2,121 |  |
e-customs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,611,000 |  |
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 |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  | $ 9,600,000 |  |  |  |  |  |  | 9,570 |  |
Airclic [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 29,597,000 |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  |  |  | $ 4,500,000 |  |  |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  |  |  |  | 4,500,000 |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  | $ 29,600,000 |  |  |  |  |  | 29,279 |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Income Taxes Payable and Goodwill |  |  |  |  |  |  |  |  |  |  |  | $ 800,000 |  |  |  |  |
Customs Info [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 34,121,000 |  |
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 |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  | 39,500,000 |  |  |  |  | 38,690 |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  |  |  |  |  | $ 34,100,000 |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares |  |  |  |  |  |  |  |  |  | 400 |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned |  |  |  |  |  |  |  |  |  | $ 5,400,000 |  |  |  |  |  |  |
Customs Info [Member] | Draw on Revolving Debt Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  | $ 20,000,000 |  |  |  |  |  |  |
Computer Management [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,689,000 |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  | $ 6,700,000 |  |  |  | 6,692 |  |
The 2015 Acquisitions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 82,152,000 |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 86,352 |  |
The 2015 Acquisitions [Member] | Other Charges [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 |  |

X
- 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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X
- 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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Period Type: | duration

X
- 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=73530397&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=73530397&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=73530397&loc=d3e4845-128472 + Details
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X
- 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=73531572&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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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + 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) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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- Definition This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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X
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References No definition available. + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + 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 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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