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Employee Benefits (Details) - USD ($)
$ in Thousands
Oct. 31, 2021
Jan. 31, 2021
Oct. 31, 2020
Jan. 31, 2020
Employee Benefits (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 10,061,000 19,705,000 19,705,000 28,576,000
Rex Shareholders [Member]        
Employee Benefits (Details) [Line Items]        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount (in Dollars) $ 126 $ 272    
Share-based Payment Arrangement, Option [Member] | Rex Shareholders [Member]        
Employee Benefits (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 5,714   14,777  
Stock Option Plans 2015 [Member] | Share-based Payment Arrangement, 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 471,027