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Goodwill and Intangible Assets - Schedule of Future Amortization Expense (Details) - USD ($)
$ in Thousands
Jan. 31, 2018
Jan. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
2018 $ 937  
2019 885  
2020 823  
2021 786  
2022 500  
Thereafter 1,904  
Net Assets $ 5,835 $ 6,997