Concentrations of Risk and Major Customers	12 Months Ended
Feb. 28, 2018
Concentrations of Risk and Major Customers	Note 10. Concentrations of Risk and Major Customers Financial instruments, which potentially subject the Company to concentrations of credit risk, consist principally of cash, accounts receivable and investments. At times, such cash in banks are in excess of the FDIC insurance limit. The Company sells to a variety of domestic and international customers on an open-unsecured account basis, in certain cases requiring letters of credit. These customers principally operate in the medical, military, and avionics industries. The Company had direct and indirect net sales to the U.S. government, primarily the Department of Defense for training and simulation programs, which comprised approximately 50% and 32% of consolidated net sales in fiscal 2018 and 2017, respectively. Sales to foreign customers were 16% and 21% of consolidated net sales in fiscal 2018 and 2017, respectively. The Company had one customer who comprised more than 10% of the Company’s sales in fiscal year 2018, Lockheed Martin (25%).

Concentrations of Risk and Major Customers

12 Months Ended

Feb. 28, 2018

Concentrations of Risk and Major Customers

Note 10. Concentrations of Risk and Major Customers

Financial instruments, which potentially subject the Company to concentrations of credit risk, consist principally of cash, accounts receivable and investments. At times, such cash in banks are in excess of the FDIC insurance limit.

The Company sells to a variety of domestic and international customers on an open-unsecured account basis, in certain cases requiring letters of credit. These customers principally operate in the medical, military, and avionics industries. The Company had direct and indirect net sales to the U.S. government, primarily the Department of Defense for training and simulation programs, which comprised approximately 50% and 32% of consolidated net sales in fiscal 2018 and 2017, respectively. Sales to foreign customers were 16% and 21% of consolidated net sales in fiscal 2018 and 2017, respectively. The Company had one customer who comprised more than 10% of the Company’s sales in fiscal year 2018, Lockheed Martin (25%).