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Note 23 - Subsequent Event (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Feb. 26, 2021	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Payments to Acquire Businesses, Net of Cash Acquired, Total		$ 48,403	$ 292,053	$ 67,932
Subsequent Event [Member] | VitaDex Solutions, LLC [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total	$ 36,000

X

- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

+ Details

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- Details

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X

- Details

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