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Note 11 - Concentrations of Credit Risk, Significant Customers and Geographic Information | 12 Months Ended
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Dec. 25, 2021
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] | (11) Concentrations of Credit Risk, Significant Customers and Geographic Information Financial instruments which subject the Company to concentrations of credit risk consist principally of cash, cash equivalents and trade accounts receivable. The Company maintains such cash deposits in a high credit quality financial institution. The Company extends credit to customers who consist principally of microelectronics systems companies in the United States, Europe and Asia. The Company generally does not require collateral or other security as a condition of sale rather relying on credit approval, balance limitation and monitoring procedures to control credit risk of trade accounts receivable. Management conducts on-going credit evaluations of its customers, and historically the Company has not experienced any significant credit-related losses with respect to its trade accounts receivable. Revenues from significant customers as a percentage of total revenues in 2021 and 2020 were as follows:
|  | Percent of Total Revenues |
Significant Customer |  | 2021 |  |  | 2020 |
A |  |  | 24 | % |  |  | 16 | %
B |  |  | 16 | % |  |  | 21 | %
C |  |  | 11 | % |  |  | 36 | %
As of December 25, 2021, the Company had trade accounts receivable due from these three customers that accounted for 53% of total trade accounts receivable as of that date. One other customer balance constitutes 23% of accounts receivable at December 25, 2021, while no others make up 10% or more of the balance. To further mitigate the potential for credit losses the Company has acquired a credit insurance policy covering most of our sales to non-US accounts. Management believes that any credit risks have been properly provided for in the accompanying financial statements. The Company’s revenue was derived from the following countries in 2021 and 2020:
|  | Percent of Total Revenues |
Country |  | 2021 |  |  | 2020 |
United States of America |  |  | 40 | % |  |  | 23 | %
Germany |  |  | 14 | % |  |  | 36 | %
Other |  |  | 46 | % |  |  | 41 | %
Many of the Company’s customers based in the United States conduct design, purchasing and payable functions in the United States, but manufacture overseas. Revenue generated from shipments made to customers’ locations outside the United States accounted for 60% and 77% of total revenue in 2021 and 2020, respectively. All of the Company’s long-lived assets and operations are located in the United States.

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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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