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Significant Customers and Concentration of Credit Risk	12 Months Ended
	Dec. 28, 2020
Risks And Uncertainties [Abstract]
Significant Customers and Concentration of Credit Risk	(11) Significant Customers and Concentration of Credit Risk In the normal course of business, the Company extends credit to its customers. Some customers to which the Company extends credit are located outside the United States. The Company performs ongoing credit evaluations of customers, does not require collateral, and considers the credit risk profile of the entity from which the receivable is due in further evaluating collection risk. The Company’s customers include both OEMs and EMS companies. The Company’s OEM customers often direct a significant portion of their purchases through EMS companies. While the Company’s customers include both OEM and EMS providers, the Company measures customer concentration based on OEM companies, as they are the ultimate end customers. For the year ended December 28, 2020, one customer accounted for approximately 11% of the Company’s net sales. These sales are included in the Company’s PCB segment. There were no other customers that accounted for 10% or more of net sales for the year ended December 28, 2020. There were no customers that accounted for 10% or more of net sales for the years ended December 30, 2019 or December 31, 2018.

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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

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- References

No definition available.

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