MAJOR CUSTOMERS

12 Months Ended

Dec. 31, 2016

Risks and Uncertainties [Abstract]

MAJOR CUSTOMERS

11. MAJOR CUSTOMERS

Four percent of revenue in 2016, 1% of revenue in 2015 and 2% of revenue in 2014 were directly to the U.S. government. Less than 10% and 1% of accounts receivable at December 31, 2016 and 2015, respectively, were from the U. S. Government.

In addition, in 2016, 36%, 29% and 11% of our revenue were to our three largest commercial customers, respectively. In 2015, 30%, 17%, 13% and 12% of our revenue were to our four largest commercial customers, respectively. At December 31, 2016, 35%, 24% and 17% of accounts receivable were from our three largest commercial customers. At December 31, 2015, 30%, 18% and 16% of accounts receivable were from our three largest commercial customers.

At December 31, 2016 and 2015, 1% of costs and estimated earnings in excess of billings on uncompleted contracts were from the U.S. Government.

At December 31, 2016, 33%, 26%, 12%, and 11% of costs and estimated earnings in excess of billings on uncompleted contracts were from our four largest commercial customers. At December 31, 2015, 26%, 23%, 13% and 11% of Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts were from our four largest commercial customers.

 In 2016, approximately 11% of our revenue was from a customer who is located outside the United States.