XML 54 R44.htm IDEA: XBRL DOCUMENT v3.25.3

Note 11 - Warrant Dividend Distribution (Details Textual) - USD ($)			1 Months Ended	3 Months Ended					6 Months Ended	9 Months Ended		18 Months Ended
	Jan. 03, 2024	Dec. 22, 2023	May 02, 2024	Mar. 31, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Mar. 31, 2024	Jun. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024	May 07, 2024	Jan. 02, 2024
Warrants and Rights Outstanding															$ 113,363,000
Proceeds from Warrant Exercises										$ 0	$ 123,552,000
Warrants to Purchase Common Stock [Member]
Class Of Warrant Or Right Issued During Period (in shares)	16,900,000	4
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		10		5,700,000	5,700,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 33			$ 22	$ 22
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)	1.5
Redemption Percentage of Warrants														0.10%
Warrant Redemption Price (in dollars per share)														$ 0.01
Warrants and Rights Outstanding						$ 0	$ 65,368,000	$ 65,368,000	$ 0	$ 0	$ 0		$ 0
Class of Warrant or Right, Exercised During Period (in shares)						3,152,000	674,000	674,000
Proceeds from Warrant Exercises							$ 22,300,000
Stock Issued During Period, Shares, Warrant Exercises (in shares)			4.7				1
Gross Proceeds From Issuance of Warrants					$ 126,300,000
Proceeds from Issuance of Warrants				$ 123,600,000
Proceeds From Warrants Exercised That Obligated to Pay Commission									$ 20,000,000
Commission Percentage of Gross Proceeds									2.50%
Payments of Warrant Exercise Costs												$ 2,700,000
Payments of Stock Issuance Costs	$ 537,000

X

- Definition

Represents the warrants or rights exercised during the period.

+ References

No definition available.

+ Details

Name:	sava_ClassOfWarrantOrRightExercisedDuringPeriod
Namespace Prefix:	sava_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of warrants or rights issued during period.

+ References

No definition available.

+ Details

Name:	sava_ClassOfWarrantOrRightIssuedDuringPeriod
Namespace Prefix:	sava_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the percentage of commission required to be paid from gross proceeds.

+ References

No definition available.

+ Details

Name:	sava_CommissionPercentageOfGrossProceeds
Namespace Prefix:	sava_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Gross proceeds received from the issuance and sale of warrants.

+ References

No definition available.

+ Details

Name:	sava_GrossProceedsFromIssuanceOfWarrants
Namespace Prefix:	sava_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the amount of warrant exercise costs during the period.

+ References

No definition available.

+ Details

Name:	sava_PaymentsOfWarrantExerciseCosts
Namespace Prefix:	sava_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Dollar amount required to be paid for commission from warrants exercised during the period.

+ References

No definition available.

+ Details

Name:	sava_ProceedsFromWarrantsExercisedThatObligatedToPayCommission
Namespace Prefix:	sava_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The Percent of the cost for redemption of warrants.

+ References

No definition available.

+ Details

Name:	sava_RedemptionPercentageOfWarrants
Namespace Prefix:	sava_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of shares of stock issued attributable to warrant exercises.

+ References

No definition available.

+ Details

Name:	sava_StockIssuedDuringPeriodSharesWarrantExercises
Namespace Prefix:	sava_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Price of warrants if they are redeemed.

+ References

No definition available.

+ Details

Name:	sava_WarrantRedemptionPrice
Namespace Prefix:	sava_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

Name:	us-gaap_PaymentsOfStockIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfWarrants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

Name:	us-gaap_ProceedsFromWarrantExercises
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_WarrantsAndRightsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=sava_WarrantsToPurchaseCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: