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Schedule of Amortization Expense Next 5 Years (Details)
$ in Thousands
Apr. 30, 2019
USD ($)
Finite-Lived Intangible Assets [Line Items]  
2020 $ 2,066
2021 2,060
2022 2,060
2023 2,061
2024 2,045
Thereafter 4,786
Total Future Amortization $ 15,078