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Note 19 - Contract Balances, Performance Obligations and Contract Costs (Tables) | 12 Months Ended
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Jan. 31, 2021
Notes Tables |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  |  | Deferred Revenue |
Balance at January 31, 2019 |  |  | 35,091 |
Recognition of previously deferred revenue |  |  | (30,580 | )
Deferral of revenue |  |  | 37,408 |
Increases from business combinations, net |  |  | 551 |
Effect of movements in foreign exchange |  |  | (407 | )
Balance at January 31, 2020 |  |  | 42,063 |
Recognition of previously deferred revenue |  |  | (37,843 | )
Deferral of revenue |  |  | 46,386 |
Increases from business combinations, net |  |  | 39 |
Effect of movements in foreign exchange |  |  | 646 |
Balance at January 31, 2021 |  |  | 51,291 |
Current |  |  | 49,878 |
Long-term |  |  | 1,413 |
|  |  | Contract Assets |
Balance at January 31, 2019 |  |  | 812 |
Transfers to trade receivables from contract assets |  |  | (490 | )
Increases as a result of delivered term licenses recognized as revenue during the period, net of amounts transferred to trade receivables |  |  | 791 |
Effect of movements in foreign exchange |  |  | (6 | )
Balance at January 31, 2020 |  |  | 1,107 |
Transfers to trade receivables from contract assets |  |  | (563 | )
Increases as a result of delivered term licenses recognized as revenue during the period, net of amounts transferred to trade receivables |  |  | 783 |
Effect of movements in foreign exchange |  |  | 26 |
Balance at January 31, 2021 |  |  | 1,353 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration