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Note 6 - Impairment of Long-lived Assets - Goodwill (Details) $ in Thousands	9 Months Ended
	Oct. 31, 2023 USD ($)
Goodwill	$ 2,227
Goodwill, foreign exchange change effect	(75)
Goodwill	$ 2,152

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 942
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-Section S99
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration