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EMPLOYEE BENEFITS (Details) - USD ($)
Oct. 31, 2018
Jan. 31, 2018
Oct. 31, 2017
Jan. 31, 2017
EMPLOYEE BENEFITS (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 38,036 29,415 29,415 23,350
Rex Shareholders [Member]        
EMPLOYEE BENEFITS (Details) [Line Items]        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) $ 237,000 $ 233,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 34,148   24,711  
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 489,430