Accrued liabilities consist of the following: | | | | | | | | | | | | | (in thousands) | May 31, 2026 | | May 31, 2025 | | Payroll and related expenses | $ | 24,869 | | | $ | 20,397 | | | Outside services | 3,057 | | | 3,243 | | | Research and development | 1,597 | | | 1,459 | | | Royalties | 2,699 | | | 2,642 | | | Sales and franchise taxes | 476 | | | 531 | | | Deferred warranties | 288 | | | 374 | | | Transaction service agreement payable | — | | | 2,241 | | | Rebates | 423 | | | 446 | | | Accrued freight | 1,200 | | | 875 | | | Accrued severance | 1,843 | | | 800 | | | | | | | Other | 2,457 | | | 2,510 | | | Total | $ | 38,909 | | | $ | 35,518 | |
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