Concentrations of Credit Risk and Major Customers

12 Months Ended

Dec. 31, 2017

Concentrations of Credit Risk and Major Customers [Abstract]

Concentration of Credit Risk and Major Customers

Concentrations of Credit Risk and Major Customers

Our major customers represent primarily the consumer goods, appliances, food products and automotive industries.  Credit is granted to customers on an unsecured basis.  Our five largest customers accounted for approximately 38%, 40%, and 36% of operating revenues for the years ended December 31, 2017, 2016, and 2015, respectively. Our five largest customers accounted for approximately 32% and 41% of gross accounts receivable as of December 31, 2017 and 2016, respectively.

There was one customer that accounted for more than 10% of operating revenues for the year ended December 31, 2017 at 12.6%. This customer had accounts receivable of $7.5 million as of December 31, 2017. One customer accounted for more than 10% of operating revenues at 12.3% for the same period ended 2016, and no customer accounted for more than 10% of operating revenues in 2015.