Related Party Transactions	12 Months Ended
May 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Note U – Related Party Transactions We purchase from, and sell to, affiliated companies certain raw materials and services at prevailing market prices. Net sales to affiliated companies for fiscal 2021, fiscal 2020 and fiscal 2019 totaled $41,426,000, $33,826,000, and $53,125,000, respectively. Purchases from affiliated companies for fiscal 2021, fiscal 2020 and fiscal 2019 totaled $5,000,000, $2,461,000, and $2,906,000, respectively. Accounts receivable from affiliated companies were $3,891,000 and $8,688,000 at May 31, 2021 and 2020, respectively. Accounts payable to affiliated companies were $9,000 and $4,736,000 at May 31, 2021 and 2020, respectively.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-URI http://asc.fasb.org/topic&trid=2122745

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864

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