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v3.19.2

Summary of Significant Accounting Policies (Details 1) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Sales [Member] |  |  |  |
Percentage of Sales | 75.60% | 74.50% | 74.70% | 73.80%
Sales [Member] | Customer 1 [Member] |  |  |  |
Percentage of Sales | 35.10% | 37.70% | 33.20% | 35.60%
Sales [Member] | Customer 2 [Member] |  |  |  |
Percentage of Sales | 30.00% | 26.00% | 29.40% | 27.70%
Sales [Member] | Customer 3 [Member] |  |  |  |
Percentage of Sales | 10.50% | 10.80% | 12.10% | 10.50%
Receivables [Member] |  |  |  |
Percentage of Sales |  |  | 58.90% | 64.50%
Receivables [Member] | Customer 1 [Member] |  |  |  |
Percentage of Sales |  |  | 30.50% | 38.30%
Receivables [Member] | Customer 2 [Member] |  |  |  |
Percentage of Sales |  |  | 28.40% | 26.20%

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