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Concentrations of Risk
 12 Months Ended
Dec. 25, 2021
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 25, 2021   December 26, 2020 
Collins Aerospace   29%   45%
DRS Network & Imaging Systems, LLC   35%   15%

 

Sales to significant non-affiliated customers for fiscal years 2021, 2020 and 2019, as a percentage of total revenues, is as follows:

 

   Sales as a Percent of Total Revenue 
   Fiscal Year 
Customer  2021   2020   2019 
Defense Customers in Total   40%   50%   30%
DRS Network & Imaging Systems, LLC   31%   35%   17%
Collins Aerospace   30%   27%   * 
Realwear, Inc.   *    *    20%
Funded Research and Development Contracts   32%   25%   17%

 

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)