Concentration and Major Customers and Suppliers	9 Months Ended
Sep. 30, 2021
Concentration And Major Customers And Suppliers [Abstract]
Concentration and Major Customers and Suppliers	(19) Concentration and Major Customers and Suppliers For the three and nine months ended September 30, 2021, the Company had no single customer contributed over 10% of total sales. For the three and nine months ended September 30, 2020, the Company had no single customer contributed over 10% of total sales. For the three months ended September 30, 2021, the Company had three major suppliers accounted for 74%, 12% and 5% of total purchases. For the three months ended September 30, 2020, the Company had three major suppliers accounted for 75%, 11% and 3% of total purchases. For the nine months ended September 30, 2021, the Company had two major suppliers accounted for 78% and 11% of total purchases. For the nine months ended September 30, 2020, the Company had three major suppliers accounted for 74%, 11% and 4% of total purchases.

Concentration and Major Customers and Suppliers

9 Months Ended

Sep. 30, 2021

(19) Concentration and Major Customers and Suppliers

For the three and nine months ended September 30, 2021, the Company had no single customer contributed over 10% of total sales.

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

For the three months ended September 30, 2021, the Company had three major suppliers accounted for 74%, 12% and 5% of total purchases.

For the three months ended September 30, 2020, the Company had three major suppliers accounted for 75%, 11% and 3% of total purchases.

For the nine months ended September 30, 2021, the Company had two major suppliers accounted for 78% and 11% of total purchases.

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