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Inventories | 6 Months Ended
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Nov. 30, 2022
Inventory Disclosure [Abstract] |
Inventories | INVENTORIESInventories are stated at lower of cost and net realizable value (using the first-in, first-out method). Inventories consisted of the following:
(in thousands) | Nov 30, 2022 |  | May 31, 2022
Raw materials | $ | 33,732 |  |  | $ | 28,251 |
Work in process | 8,201 |  |  | 7,186 |
Finished goods | 21,244 |  |  | 15,955 |
Inventories | $ | 63,177 |  |  | $ | 51,392 |
The Company periodically reviews inventory for both obsolescence and loss of value. The Company makes assumptions about the future demand for and market value of the inventory. Based on these assumptions, the Company estimates the amount of obsolete, expiring and slow-moving inventory. The total inventory reserve at November 30, 2022 and May 31, 2022 was $3.9 million and $3.7 million, respectively.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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