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Concentrations of Risk
 12 Months Ended
Dec. 26, 2020
Risks and Uncertainties [Abstract]  
Concentrations of Risk

9. Concentrations of Risk

 

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 26, 2020   December 28, 2019 
Collins Aerospace   45%   23%
DRS Network & Imaging Systems, LLC   15%   22%
Scott Safety   *    12%
RealWear, Inc.   *    10%

 

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 2020, 2019 and 2018, as a percentage of total revenues, is as follows:

 

   Sales as a Percent of Total Revenue 
   Fiscal Year 
Customer  2020   2019   2018 
Defense Customers in Total   50%   30%   36%
General Dynamics   *    *    11%
DRS Network & Imaging Systems, LLC   35%   17%   * 
Collins Aerospace   27%   *    20%
RealWear, Inc.   *    20%   * 
Funded Research and Development Contracts   25%   17%   20%

 

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

 

 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)