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Subsequent Events and Impact of COVID-19 Pandemic (Details) - item	9 Months Ended
	Sep. 30, 2020	Mar. 31, 2020
Executive Officers
Subsequent Events and Impact of COVID-19 Pandemic
Options, term (in years)	P10Y
Alzheimer Disease Cooperative Study
Subsequent Events and Impact of COVID-19 Pandemic
Number of patients enrolled for treatment		14
Total number of trial patients		24

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Description of terms of award under share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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