Concentration and Major Customers and Suppliers	6 Months Ended
Jun. 30, 2020
Concentration And Major Customers And Suppliers [Abstract]
Concentration and Major Customers and Suppliers	(18) Concentration and Major Customers and Suppliers For the three months ended June 30, 2020, the Company had no single customer contributed over 10% of total sales. For the three months ended June 30, 2019, the Company had no single customer contributed over 10% of total sales. For the three months ended June 30, 2020, the Company had four major suppliers accounted for 74%, 11%, 4% and 3% of total purchases. For the three months ended June 30, 2019, the Company had three major suppliers accounted for 80%, 9% and 4% of total purchases. For the six months ended June 30, 2020, the Company had four major suppliers accounted for 73%, 11%, 4% and 4% of total purchases. For the six months ended June 30, 2019, the Company had three major suppliers accounted for 80%, 9% and 4% of total purchases.

Concentration and Major Customers and Suppliers

6 Months Ended

Jun. 30, 2020

Concentration And Major Customers And Suppliers [Abstract]

Concentration and Major Customers and Suppliers

(18) Concentration and Major Customers and Suppliers

For the three months ended June 30, 2020, the Company had no single customer contributed over 10% of total sales.

For the three months ended June 30, 2019, the Company had no single customer contributed over 10% of total sales.

For the three months ended June 30, 2020, the Company had four major suppliers accounted for 74%, 11%, 4% and 3% of total purchases.

For the three months ended June 30, 2019, the Company had three major suppliers accounted for 80%, 9% and 4% of total purchases.

For the six months ended June 30, 2020, the Company had four major suppliers accounted for 73%, 11%, 4% and 4% of total purchases. For the six months ended June 30, 2019, the Company had three major suppliers accounted for 80%, 9% and 4% of total purchases.