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Summary of Significant Accounting Policies - Schedule of Concentration (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Mar. 31, 2018 | Mar. 31, 2019 | Dec. 31, 2017
Concentration Percentage | 10.00% | 10.00% |  | 10.00% |
Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  | 67.70% | 53.70% | 57.80%
Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  | 67.20% | 48.40% | 60.50%
Customer A [Member] | Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  |  | 24.60% |
Customer A [Member] | Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  |  | 29.40% |
Customer B [Member] | Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  |  | 19.10% |
Customer B [Member] | Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  |  |  |
Customer C [Member] | Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  | 35.50% | 10.00% | 57.80%
Customer C [Member] | Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  | 54.60% |  | 27.40%
Customer D [Member] | Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  |  |  |
Customer D [Member] | Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  |  | 19.00% |
Customer E [Member] | Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  | 17.10% |  |
Customer E [Member] | Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  | 12.60% |  |
Customer F [Member] | Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  | 15.10% |  |
Customer F [Member] | Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  |  |  |
Customer G [Member] | Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  |  |  |
Customer G [Member] | Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  |  |  | 20.40%
Customer H [Member] | Revenues [Member] |  |  |  |  |
Concentration Percentage |  |  |  |  |
Customer H [Member] | Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage |  |  |  |  | 12.70%
Revenues [Member] |  |  |  |  |
Concentration Percentage | 36.40% | 62.40% |  |  |
Revenues [Member] | Customer A [Member] |  |  |  |  |
Concentration Percentage | 25.90% | 0.00% |  |  |
Revenues [Member] | Customer B [Member] |  |  |  |  |
Concentration Percentage | 10.50% | 62.40% |  |  |
Revenues [Member] | Customer C [Member] |  |  |  |  |
Concentration Percentage | 0.00% | 0.00% |  |  |
Accounts Receivable [Member] |  |  |  |  |
Concentration Percentage | 34.60% | 66.90% |  |  |
Accounts Receivable [Member] | Customer A [Member] |  |  |  |  |
Concentration Percentage | 34.60% | 0.00% |  |  |
Accounts Receivable [Member] | Customer B [Member] |  |  |  |  |
Concentration Percentage | 0.00% | 13.00% |  |  |
Accounts Receivable [Member] | Customer C [Member] |  |  |  |  |
Concentration Percentage | 0.00% | 53.90% |  |  |

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