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Concentrations of Risk | 12 Months Ended
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Dec. 28, 2019
Risks and Uncertainties [Abstract] |
Concentrations of Risk | 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 28, 2019 |  | December 29, 2018
Collins Aerospace | 23% |  | 11%
DRS Network & Imaging Systems, LLC | 22% |  | 11%
Scott Safety | 12% |  | *
RealWear, Inc. | 10% |  | 31%
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 2019, 2018 and 2017, as a percentage of total revenues, is as follows:
| Sales as a Percent of Total Revenue
| Fiscal Year
Customer | 2019 |  | 2018 |  | 2017
Military Customers in Total | 30% |  | 36% |  | 48%
Collins Aerospace | * |  | 20% |  | 10%
DRS Network & Imaging Systems, LLC | 17% |  | * |  | 10%
General Dynamics | * |  | 11% |  | *
RealWear, Inc. | 20% |  | * |  | *
U.S. Army | * |  | * |  | 12%
Funded Research and Development Contracts | 17% |  | 20% |  | 11%
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.

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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 http://asc.fasb.org/topic&trid=2134479 + Details
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- References No definition available. + Details
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