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v3.20.1

CONCENTRATION - Textuals (Details) | 12 Months Ended
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Jan. 31, 2020 | Jan. 31, 2019 | Jan. 31, 2018
Customer One | Accounts Receivable [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of concentration risk | 25.70% | 27.50% |
Customer Two | Accounts Receivable [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of concentration risk | 17.00% | 16.50% |
Customer Three | Accounts Receivable [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of concentration risk | 10.00% |  |
Customer | Customer One | Sales Revenue, Net [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of concentration risk | 26.30% | 24.80% | 22.20%
Customer | Customer Two | Sales Revenue, Net [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of concentration risk | 13.20% | 12.40% |
Supplier |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of concentration risk | 49.50% | 61.50% | 65.10%
Vendors | One Vendor |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of concentration risk | 11.40% | 14.40% | 14.70%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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