XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.26.1

Stockholders' Equity (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2026
Class Of Stock [Line Items] |
Summary of Stock Option Activity | The following table summarizes stock option activity for the year ended March 31, 2026:
|  | Options Outstanding |  |  | Weighted- Average Exercise Price |  |  | Aggregate Intrinsic Value |
Outstanding at March 31, 2025 |  |  | 141,397 |  |  | $ | 22.66 |  |  | $ | — |
Options granted |  |  | 127,952 |  |  | $ | 2.05 |  |  | $ | — |
Options canceled |  |  | (2,552 | ) |  | $ | 14.51 |  |  | $ | — |
Options expired |  |  | (5,713 | ) |  | $ | 33.63 |  |  | $ | — |
Outstanding at March 31, 2026 |  |  | 261,084 |  |  | $ | 12.40 |  |  | $ | — |
Vested and Exercisable at March 31, 2026 |  |  | 60,045 |  |  | $ | 40.47 |  |  | $ | — |
Common Stock Reserved for Future Issuance | Common stock reserved for future issuance consisted of the following at March 31, 2026:
Common stock issuable pursuant to options outstanding and reserved under the 2012 Plan |  |  | 27,565 |
Common stock issuable pursuant to options outstanding and reserved under the A&R 2022 Plan |  |  | 229,353 |
Common stock reserved under the A&R 2022 Plan |  |  | 12,252 |
Common stock reserved under the ESPP |  |  | 3,708 |
Common stock reserved under the 2021 Inducement Equity Plan |  |  | 83 |
Common stock issuable pursuant to restricted stock units outstanding under the A&R 2022 Plan |  |  | 75,000 |
Common stock issuable pursuant to options outstanding and reserved under the Inducement Plan |  |  | 4,166 |
Common stock issuable pursuant to outstanding 2024 Common Warrants |  |  | 539,060 |
Common stock issuable pursuant to outstanding 2026 Pre-Funded Warrants |  |  | 2,345,022 |
Common stock issuable pursuant to outstanding 2026 Common Warrants |  |  | 3,947,369 |
Common stock issuable pursuant to outstanding Placement Agent Warrants |  |  | 131,579 |
Total at March 31, 2026 |  |  | 7,315,157 |
Schedule of Stock-based Compensation Expense | Stock-based compensation expense for all stock-based awards consists of the following (in thousands):
|  | Year Ended March 31, 2026 |  |  | Year Ended March 31, 2025 |
Research and development |  | $ | 56 |  |  | $ | 86 |
General and administrative |  |  | 247 |  |  |  | 446 |
Total |  | $ | 303 |  |  | $ | 532 |
Fair Value of Employee Stock Options | The fair value of stock options was estimated at the grant date using the following weighted average assumptions:
|  | Year Ended March 31, 2026 |  |  | Year Ended March 31, 2025 |
Dividend yield |  |  | — |  |  |  | — |
Volatility |  |  | 113.22 | % |  |  | 99.38 | %
Risk-free interest rate |  |  | 3.68 | % |  |  | 3.75 | %
Expected life of options |  | 6.00 years |  |  | 5.75 years |
Weighted average grant date fair value |  | $ | 1.74 |  |  | $ | 5.67 |
Summary of Warrant Activity | The following table summariz es the Company’s 2024 Common Warrants activity from March 31, 2025 to March 31, 2026:
|  | Number of Warrants |  |  | Exercise Price |
Outstanding at March 31, 2025 |  |  | 539,060 |  |  | $ | 9.60 |
Issued |  |  | — |  |  |  | — |
Exercised |  |  | — |  |  |  | — |
Outstanding at March 31, 2026 |  |  | 539,060 |  |  | $ | 9.60 |
The following table summarizes information about shares issuable under the 2026 Pre-Funded Warrants, the 2026 Common Warrants, and the Placement Agent Warrants from March 31, 2025 to March 31, 2026:
|  | 2026 Pre-Funded Warrants |  | Exercise Price |  | 2026 Common Warrants |  | Exercise Price |  | Placement Agent Warrants |  | Exercise Price |
Outstanding at March 31, 2025 |  |  | — |  | $ | — |  |  | — |  | $ | — |  |  | — |  | $ | — |
Issued |  |  | 2,345,022 |  | $ | 0.001 |  |  | 3,947,369 |  | $ | 1.71 |  |  | 131,579 |  | $ | 1.43 |
Exercised |  |  | — |  | $ | — |  |  | — |  | $ | — |  |  | — |  | $ | — |
Outstanding at March 31, 2026 |  |  | 2,345,022 |  | $ | 0.001 |  |  | 3,947,369 |  | $ | 1.71 |  |  | 131,579 |  | $ | 1.43 |
The following table summarizes the Company’s common stock warrant liability, which represents a recurring measurement that is classified with Level 3 of the fair value hierarchy wherein the fair value is estimated using significant unobservable inputs (in thousands):
|  | March 31, 2026 |
Beginning common stock warrant liability |  | $ | — |
Common warrants issued |  |  | 5,700 |
Common warrants exercised |  |  | — |
Change in fair value |  |  | — |
Ending common stock warrant liability |  | $ | 5,700 |
Summary of Assumptions Used to Determine the Fair Value | The fair value of the common stock warrant liability was measured using a Monte Carlo model and will be remeasured each reporting period, and the change in fair value will be recorded in earnings. The fair value of the 2026 Common Warrants is inherently sensitive to changes in the Company's stock price and related volatility assumptions. The assumptions that the Company used to determine the fair value at the reporting date were as follows:
|  | Year Ended March 31, 2026 |
Dividend yield |  |  | — |
Volatility |  |  | 110.00 | %
Risk-free interest rate |  |  | 3.90 | %
Expected life of warrants |  | 5.00 years |
Weighted average grant date fair value |  | $ | 1.71 |
Placement Agent Warrants [Member] |
Class Of Stock [Line Items] |
Summary of Assumptions Used to Determine the Fair Value | The assumptions that the Company used to determine the fair value of the placement agent warrants were as follows:
|  | Year Ended March 31, 2026 |
Dividend yield |  |  | — |
Volatility |  |  | 124.02 | %
Risk-free interest rate |  |  | 3.81 | %
Expected life of warrants |  | 3.00 years |
Weighted average grant date fair value |  | $ | 1.43 |
Restricted stock units (RSUs) [Member] |
Class Of Stock [Line Items] |
Summary of Company's RSUs Activity | The following table summarizes the Company’s RSUs activity for the year ended March 31, 2026:
|  | Number of Shares |  |  | Weighted Average Price |
Unvested at March 31, 2025 |  |  | 8,165 |  |  | $ | 6.57 |
Granted |  |  | 75,000 |  |  | $ | 1.73 |
Vested |  |  | (8,165 | ) |  | $ | 6.57 |
Cancelled / forfeited |  |  | — |  |  | $ | — |
Unvested at March 31, 2026 |  |  | 75,000 |  |  | $ | 1.73 |
ESPP Shares [Member] |
Class Of Stock [Line Items] |
Fair Value of Employee Stock Options | The fair value of the ESPP shares was estimated at the purchase period commencement date using the following assumptions:
|  | Year Ended March 31, 2026 |  |  | Year Ended March 31, 2025 |
Dividend yield |  |  | — |  |  |  | — |
Volatility |  |  | 0.00 | % |  |  | 95.20 | %
Risk-free interest rate |  |  | 0.00 | % |  |  | 5.27 | %
Expected term |  |  | — |  |  | 6 months |
Grant date fair value |  | $ | — |  |  | $ | 0.39 |

X
- 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -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 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479857/480-10-S50-1 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-13 Reference 6: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 272 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483014/272-10-45-3 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 272 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482987/272-10-50-1 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-13 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-13 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-13 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-13 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-14 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-18 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(2)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(2)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3 + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -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 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common stock capital shares reserved for future issuance. + References No definition available. + Details
Name: | vivs_CommonStockCapitalSharesReservedForFutureIssuanceTableTextBlock
Namespace Prefix: | vivs_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=vivs_PlacementAgentWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=vivs_ESPPSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |