Concentrations of Risk

12 Months Ended

Dec. 29, 2018

Ongoing credit evaluations of customers’ financial condition are performed and collateral, such as letters of credit, are generally not required. Customer’s accounts receivable balance as a percentage of total accounts receivable was as follows:



	Percent of Gross Accounts Receivable
Customer	December 29, 2018	December 30, 2017
Collins Aerospace	11%	*
DRS Technologies	11%	*
Scott Safety	*	14%
RealWear, Inc.	31%	10%
U.S. Army	*	43%

Note: The symbol “*” indicates that accounts receivables from that customer were less than 10% of the Company’s total accounts receivable.

Sales to significant non-affiliated customers for fiscal years 2018, 2017 and 2016, as a percentage of total revenues, is as follows:



	Sales as a Percent of Total Revenue
	Fiscal Year
Customer	2018	2017	2016
Military Customers in Total	36%	48%	24%
General Dynamics	11%	*	*
DRS Technologies	*	10%	*
Collins Aerospace	20%	10%	12%
Shenzhen Oriscape	*	*	20%
U.S. Army	*	12%	*
Funded Research and Development Contracts	20%	11%	7%

Note: The symbol “*” indicates that sales to that customer were less than 10% of the Company’s total revenues. The caption "Military Customers in Total" excludes research and development contracts.