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Subsequent Events	9 Months Ended
	Oct. 31, 2021
Subsequent Events [Abstract]
Subsequent Events [Text Block]	15.       Subsequent Events Dividends On December 7, 2021, our board of directors declared a quarterly cash dividend of $0.20 per share, an increase of $0.02 per share or 11% over the most recent dividend, which will be paid on December 31, 2021 to shareholders of record at December 17, 2021.

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No definition available.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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