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PROPERTY AND EQUIPMENT (Narrative) (Details) - USD ($)
12 Months Ended
Jan. 31, 2019
Jan. 31, 2018
PROPERTY AND EQUIPMENT [abstract]    
Net book value of assets no longer in use disposed $ 90,100  
Proceeds from sales of property and equipment  
Losses on disposals of property and equipment 90,100  
Depreciation expense 383,098
Depreciation expense allocated to inventory $ 354,560