XML 67 R47.htm IDEA: XBRL DOCUMENT
v3.24.3

Note 12 - Warrant Dividend Distribution (Details Textual) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 03, 2024 | Dec. 22, 2023 | May 02, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | May 07, 2024 | Jan. 02, 2024
Warrants and Rights Outstanding |  |  |  | $ 0 |  |  |  | $ 0 |  |  | $ 113,363,000
Proceeds from Warrant Exercises |  |  |  |  |  |  |  | $ 123,552,000 | $ 0 |  |
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 | $ 0 | $ 65,368,000 | $ 65,368,000 | $ 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 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: |