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Note 23 - Subsequent Event (Details Textual) - USD ($) $ in Thousands |  | 12 Months Ended
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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 |  |  |

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- 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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- Details
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