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Schedule of Amortization Expense Next 5 Years (Details)
$ in Thousands
Jul. 31, 2018
USD ($)
Finite-Lived Intangible Assets [Line Items]  
2019 $ 1,883
2020 1,871
2021 1,868
2022 1,868
2023 1,861
Thereafter 6,129
Total Future Amortization $ 15,480