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v3.19.1

Summary of Significant Accounting Policies (Details 1) | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Company A [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration risk percentage | 43.00% |  | 34.00%
Company B [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration risk percentage | 27.00% |  | 24.00%
Company C [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration risk percentage |  | [1] | 11.00%
[1] | Amount is less than 10%.

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