Description of the Company	12 Months Ended
Jun. 01, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Company	1. DESCRIPTION OF THE COMPANY Richardson Electronics, Ltd. (the "Company," "we," "our") is a leading global manufacturer of engineered solutions, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; high-value replacement parts, tubes and service training for diagnostic imaging equipment; and customized display solutions. Nearly 55% of our products are manufactured at our facilities located in LaFox, Illinois, Marlborough, Massachusetts and Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure. Our products include electron tubes and related components, microwave generators, subsystems used in semiconductor manufacturing and visual technology solutions. These products are used to control, switch or amplify electrical power signals, or are used as display devices in a variety of industrial, commercial, medical and communication applications. The Company reports its financial performance for the following business segments: Power and Microwave Technologies ("PMT"), Green Energy Solutions ("GES"), Canvys and Healthcare. A description of the Company's business segments is provided in Note 10, Segment and Geographic Information. We currently operate within the following major geographic regions: North America, Asia/Pacific, Europe and Latin America. Customer Concentration: No one customer represented more than 10 percent of our total accounts receivable balance as of June 1, 2024. One customer represented 20 percent of our total accounts receivable balance as of May 27, 2023. No one customer represented more than 10 percent of the consolidated net sales in fiscal 2024. Sales to one customer in our PMT segment totaled $31.2 million, which accounted for 12 percent of the Company’s consolidated net sales in fiscal 2023. No one customer represented more than 10 percent of the consolidated net sales in fiscal 2022. Supplier Concentration: Two of our suppliers each represented 11 percent of our total cost of sales in fiscal 2024. One supplier represented 11 percent in fiscal 2023 and in fiscal 2022. The amount owed to both suppliers for fiscal 2024 totaled $3.8 million as of June 1, 2024. The amount owed for fiscal 2023 totaled $0.2 million as of May 27, 2023.

Description of the Company

12 Months Ended

Jun. 01, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

DESCRIPTION OF THE COMPANY

Richardson Electronics, Ltd. (the "Company," "we," "our") is a leading global manufacturer of engineered solutions, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; high-value replacement parts, tubes and service training for diagnostic imaging equipment; and customized display solutions. Nearly 55% of our products are manufactured at our facilities located in LaFox, Illinois, Marlborough, Massachusetts and Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure.

Our products include electron tubes and related components, microwave generators, subsystems used in semiconductor manufacturing and visual technology solutions. These products are used to control, switch or amplify electrical power signals, or are used as display devices in a variety of industrial, commercial, medical and communication applications.

The Company reports its financial performance for the following business segments: Power and Microwave Technologies ("PMT"), Green Energy Solutions ("GES"), Canvys and Healthcare. A description of the Company's business segments is provided in Note 10, Segment and Geographic Information.

We currently operate within the following major geographic regions: North America, Asia/Pacific, Europe and Latin America.

Customer Concentration: No one customer represented more than 10 percent of our total accounts receivable balance as of June 1, 2024. One customer represented 20 percent of our total accounts receivable balance as of May 27, 2023. No one customer represented more than 10 percent of the consolidated net sales in fiscal 2024. Sales to one customer in our PMT segment totaled $31.2 million, which accounted for 12 percent of the Company’s consolidated net sales in fiscal 2023. No one customer represented more than 10 percent of the consolidated net sales in fiscal 2022.

Supplier Concentration: Two of our suppliers each represented 11 percent of our total cost of sales in fiscal 2024. One supplier represented 11 percent in fiscal 2023 and in fiscal 2022. The amount owed to both suppliers for fiscal 2024 totaled $3.8 million as of June 1, 2024. The amount owed for fiscal 2023 totaled $0.2 million as of May 27, 2023.