Summary of the Net Purchase Price and Allocation to the Acquired Assets (Detail) - ProstaGene, LLC - USD ($)	12 Months Ended
May 31, 2020	May 31, 2019
Business Acquisition, Contingent Consideration [Line Items]
CytoDyn Inc. Equity	$ 11,558,000
Acquisition Expenses	741,297
Release of Deferred Tax Asset	2,826,919
Total Cost of Acquisition	15,126,216
Intangible assets	15,126,216	$ 15,126,216
Other	0
Allocation of Acquisition Costs	$ 15,126,216

Business combination of deferred tax asset release.

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- Definition

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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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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