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v3.25.2

Summary of Accounting Policies - Additional Information (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Aug. 30, 2025 USD ($) Vote shares | Aug. 31, 2024 USD ($) | May 31, 2025 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |
Finished goods | $ 88,600 |  | $ 86,400
Raw material | 11,800 |  | 11,500
Work in progress | 4,200 |  | 4,900
Inventory valuation reserves | $ 7,700 |  | 7,600
Weighted average number of years of amortization expense | 6 years 7 months 6 days |  |
Warranty reserves | $ 900 |  | $ 800
Limit of cash dividends Class B common stock (percent) | 90.00% |  |
Net sales | $ 54,607 | $ 53,725 |
Revenue recognized upon satisfaction of performace obligations | 1,600 | 900 |
Bill-and-Hold Arrangement |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Net sales | $ 1,100 | $ 3,100 |
Common Stock |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Common stock shares, authorized | shares | 17,000,000 |  |
Common Class B |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Common stock shares, authorized | shares | 3,000,000 |  |
Number of votes per share | Vote | 10 |  |
Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Percentage of services revenue | 5.00% |  |

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