Note 1 - Summary of Business and Significant Accounting Policies - Capitalized Software Costs and Accumulated Amortization (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Jan. 31, 2020
Capitalized software development costs	$ 3,655	$ 3,356
Acquired software technology	6,191	135
Capitalized Computer Software, Gross	9,846	3,491
Less accumulated amortization	(1,866)	(1,569)
Capitalized Computer Software, Net, Ending Balance	$ 7,980	$ 1,922

The carrying amount of acquired software technology as of the Balance Sheet date.

No definition available.

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Period Type:	instant

- Definition

Amount before accumulated amortization of capitalized software development costs for computer software.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

+ Details

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- Definition

Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

+ References

+ Details

Name:	us-gaap_CapitalizedComputerSoftwareGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

+ Details

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Period Type:	instant