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v3.22.4

Accrued Liabilities (Tables) | 6 Months Ended
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Nov. 30, 2022
Payables and Accruals [Abstract] |
Accrued Liabilities | Accrued liabilities consisted of the following:
(in thousands) | Nov 30, 2022 |  | May 31, 2022
Payroll and related expenses | $ | 10,185 |  |  | $ | 20,232 |
Royalties | 1,967 |  |  | 2,986 |
Outside services | 6,739 |  |  | 3,731 |
Research and development | 1,084 |  |  | 1,279 |
Sales and franchise taxes | 815 |  |  | 750 |
Rebates | 421 |  |  | 511 |
Other | 5,322 |  |  | 5,353 |
| $ | 26,533 |  |  | $ | 34,842 |

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