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Note 21 - Subsequent Event	12 Months Ended
	Jan. 31, 2018
Notes to Financial Statements
Subsequent Events [Text Block]	Note 21 – Subsequent Event On February 2, 2018, Descartes acquired Aljex Software, Inc. (“Aljex”), a cloud-based provider of back-office transportation management solutions for freight brokers and transportation providers. US-based Aljex helps customers automate business processes and create electronic documents critical for executing transportation moves through the lifecycle of a shipment. The purchase price for the acquisition was approximately $32.4 million, net of cash acquired, which was funded from drawing on our existing credit facility. As of the issue date of these consolidated financial statements, the fair value of the acquired assets and liabilities has not been determined.

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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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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