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Concentration and Major Customers and Suppliers | 12 Months Ended
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Dec. 31, 2018
Concentration and Major Customers and Suppliers [Abstract] |
Concentration and Major Customers and Suppliers | (18) Concentration and Major Customers and Suppliers For the years ended December 31, 2018 and 2017, the Company had no single customer contributed over 10% of total sales. For the year ended December 31, 2018, the Company had two major suppliers that accounted for 82% and 7% of total purchases by the Company. For the year ended December 31, 2017, the Company had two major suppliers that accounted for 69% and 8% of its total purchases.

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