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v3.19.3

Summary of Significant Accounting Policies (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Mar. 31, 2019
Accounts Receivable | Customer A |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentrations of credit risk |  |  | 27.00% |  | 25.70%
Sales | Customer A |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentrations of credit risk | 20.60% | 39.00% | 19.60% | 32.70% |
Sales | Customer B |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentrations of credit risk | 10.10% |  | 10.90% |  |
Sales | Carrier Partner A |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentrations of credit risk | 43.30% | 49.70% | 43.50% | 50.20% |
Sales | Carrier Partner B |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentrations of credit risk | 31.40% | 38.80% | 32.70% | 38.30% |

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