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v3.25.1

Related party transactions (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
May 31, 2023 | Feb. 23, 2025 | May 26, 2024 | Feb. 25, 2024 | Feb. 23, 2025 | Feb. 25, 2024 | May 28, 2023
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Contract liability, noncurrent |  | $ 4,419 | $ 4,960 |  | $ 4,419 |  |
Current liabilities, current |  | 2,565 | 2,113 |  | 2,565 |  |
Debt principal |  | 184,361 | 187,539 |  | 184,361 |  |
Proceeds from sale of equipment |  |  |  |  | 7,000 | $ 0 |
Operating lease payment |  |  |  |  | 334 | 644 |
Line of credit | Term loan credit facility with related party |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Debt principal |  | $ 169,287 | 157,313 |  | $ 169,287 |  |
Stated interest rate |  | 10.00% |  |  | 10.00% |  |
Revenues | Alcon | Customer concentration risk |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Concentration risk percentage |  |  |  |  | 43.00% |  |
Alcon |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Advances to affiliate |  | $ 465 | 1,207 |  | $ 465 |  |
Alcon | Contract liability prepayment |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Related party transaction, amount |  |  | 5,500 |  |  |  |
Related party |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Current liabilities, current |  | 1,750 | $ 1,025 |  | 1,750 |  |
Related party | Alcon |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Contract liability, noncurrent |  | 4,053 |  |  | 4,053 |  |
Current liabilities, current |  | 918 |  |  | 918 |  |
Credit memo |  | 5,500 |  |  | 5,500 |  |
Proceeds from term borrowings |  |  |  |  | 142,270 |  |
Proceeds from sale of equipment | $ 7,730 |  |  |  |  |  |
Operating lease, term of contract |  |  |  |  |  |  | 10 years
Operating lease payment |  | $ 295 |  | $ 306 | $ 893 | $ 667 |

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