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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 2: 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 3: 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=121572278&loc=d3e13531-108611

Reference 4: 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=121572278&loc=d3e13537-108611

Reference 5: 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

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

CONCENTRATION - Textuals (Details)	12 Months Ended
CONCENTRATION - Textuals (Details)	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Customer One \| Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk	19.80%	25.70%
Customer Two \| Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk	19.50%	17.00%
Customer Three \| Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk	15.10%	10.00%
Customer Four \| Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk	10.10%
Customer \| Customer One \| Sales Revenue, Net [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk	20.90%	26.30%	24.80%
Customer \| Customer Two \| Sales Revenue, Net [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk	12.90%	13.20%	12.40%