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Concentrations of Risk | 12 Months Ended
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Dec. 31, 2022
Risks and Uncertainties [Abstract] |
Concentrations of Risk | 7. 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: Schedules of Concentration of Risk, by Risk Factor
|  | Percent of Gross Accounts Receivable |
Customer |  | December 31, 2022 |  |  | December 25, 2021 |
Collins Aerospace |  |  | 28 | % |  |  | 29 | %
DRS Network & Imaging Systems, LLC |  |  | 37 | % |  |  | 35 | %
Sales to significant non-affiliated customers for fiscal years 2022, 2021 and 2020, as a percentage of total revenues, is as follows:
|  | Sales as a Percent of Total Revenue |
|  |  | Fiscal Year |
|  |  | 2022 |  |  |  | 2021 |  |  |  | 2020 |
Customer |  |  |  |  |  |  |  |  |  |  |  |
Defense Customers in Total |  |  | 52 | % |  |  | 40 | % |  |  | 50 | %
DRS Network & Imaging Systems, LLC |  |  | 40 | % |  |  | 31 | % |  |  | 35 | %
Collins Aerospace |  |  | 28 | % |  |  | 30 | % |  |  | 27 | %
Funded Research and Development Contracts |  |  | 30 | % |  |  | 32 | % |  |  | 25 | %
Note: The caption “Defense Customers in Total” excludes research and development contracts. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI https://asc.fasb.org/topic&trid=2134479 + Details
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- References No definition available. + Details
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