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Concentration and Major Customers and Suppliers | 6 Months Ended
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Jun. 30, 2018
Concentration and Major Customers and Suppliers and Concentration of Credit Risk and Risks and Uncertainties [Abstract] |
Concentration and Major Customers and Suppliers | (18) Concentration and Major Customers and Suppliers For the three and six months ended June 30, 2018, the Company had no single customer contributed over 10% of total sales. For the three and six months ended March 31, 2017, the Company had no single customer contributed over 10% of total sales. For the three months ended June 30, 2018, the Company had one major supplier accounted for 86% of total purchases. For the three months ended June 30, 2017, the Company had three major suppliers accounted for 60%, 20% and 7% of total purchases. For the six months ended June 30, 2018, the Company had one major supplier which primarily accounted for 84% of the total purchases. For the six months ended June 30, 2017, the Company had three major suppliers which primarily accounted for 56%, 18% and 7% of the total purchases.

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