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Intangible Assets (Details 1) - USD ($)
$ in Thousands
Mar. 31, 2019
Mar. 31, 2018
Future Amortization    
2020 $ 3,496  
2021 2,921  
2022 2,239  
2023 2,119  
2024 979  
Thereafter 1,183  
Total $ 12,937 $ 6,535