Investments - Narrative (Details) - USD ($)	3 Months Ended
Aug. 31, 2023	Aug. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Equity method investment, impairment	$ 0
Income from equity-method investments	$ 200,000	$ 100,000
Children's Book Publishing & Distribution
Debt and Equity Securities, FV-NI [Line Items]
Equity method ownership percentage	26.20%
Financing and Production Company \| Financing and Production Company
Debt and Equity Securities, FV-NI [Line Items]
Other equity percentage	4.60%

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 45
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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