CONCENTRATION - Textuals (Details)	12 Months Ended
	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%