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EMPLOYEE BENEFITS (Details) - USD ($)
Oct. 31, 2017
Jan. 31, 2017
EMPLOYEE BENEFITS (Details) [Line Items]    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 277,000 $ 214,000
Stock Option Plans 2015 [Member] | Employee Stock Option [Member]    
EMPLOYEE BENEFITS (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 550,000  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 511,174