Note 4 - Discontinued Operations - Held for Sale and Discontinued Operations (Details) (Parentheticals) - USD ($)	3 Months Ended	9 Months Ended
Oct. 31, 2022	Oct. 31, 2022
Discontinued Operations, Held-for-Sale [Member]
Currency translation loss	$ (1,626)	$ (1,626)

Amount of foreign currency translation gain (loss) in the disposal group, including discontinued operation, recognized in the statement of income as a result of the sale or complete or substantially complete liquidation of an investment in a foreign entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481694/830-30-45-20

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration