XML 49 R37.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Common Stock - Shelf Registration Statement (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2022 USD ($) d | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) d $ / shares shares | Oct. 31, 2022 USD ($) | May 10, 2022 USD ($) | May 05, 2022 USD ($) | Dec. 31, 2020 USD ($) | Nov. 30, 2020 USD ($)
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Maximum aggregate offering price of securities under shelf registration |  |  |  |  |  |  |  |  | $ 250,000
Commission, percent of gross proceeds from sale of common stock |  |  |  | 3.00% |  |  |  |  |
Shares issued (in shares) |  | $ 130 | $ 5 |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Shelf registration statement, amount remaining |  |  |  |  | $ 75,000 |  |  |  |
December 2020 ATM |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Maximum aggregate offering price of securities under shelf registration |  |  |  |  |  |  |  | $ 50,000 |
Shelf registration, termination, prior written notice | d | 10 |  |  | 10 |  |  |  |  |
Shares issued (in shares) | $ 40,900 |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 4,204,113 |  |  |  |  |
Issuance of stock (in USD per share) | $ / shares |  |  |  | $ 9.72 |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 39,600 |  |  |  |  |
Underwriter commissions |  |  |  | $ 1,200 |  |  |  |  |
December 2020 ATM | Subsequent Event |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, remaining capacity |  |  |  |  | $ 8,400 |  |  |  |
May 2022 ATM |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Maximum aggregate offering price of securities under shelf registration |  |  |  |  |  | $ 80,000 |  |  |
Shelf registration, termination, prior written notice | d | 10 |  |  | 10 |  |  |  |  |
Sale of stock, remaining capacity |  |  |  |  |  |  | $ 80,000 |  |

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 No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of cash paid for commissions during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585 + Details
Name: | us-gaap_PaymentsForCommissions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Maximum Aggregate Offering Price Of Securities Under Shelf Registration + References No definition available. + Details
Name: | vtl_MaximumAggregateOfferingPriceOfSecuritiesUnderShelfRegistration
Namespace Prefix: | vtl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sale Of Stock, Remaining Capacity + References No definition available. + Details
Name: | vtl_SaleOfStockRemainingCapacity
Namespace Prefix: | vtl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Shares Issued, Weighted Average Share Price Per Share + References No definition available. + Details
Name: | vtl_SharesIssuedWeightedAverageSharePricePerShare
Namespace Prefix: | vtl_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Shelf Registration Agreement, Commission, Percent Of Gross Proceeds On Sale Of Common Stock + References No definition available. + Details
Name: | vtl_ShelfRegistrationAgreementCommissionPercentOfGrossProceedsOnSaleOfCommonStock
Namespace Prefix: | vtl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Shelf Registration Statement, Amount Remaining + References No definition available. + Details
Name: | vtl_ShelfRegistrationStatementAmountRemaining
Namespace Prefix: | vtl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Shelf Registration, Termination, Prior Written Notice + References No definition available. + Details
Name: | vtl_ShelfRegistrationTerminationPriorWrittenNotice
Namespace Prefix: | vtl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=vtl_December2020ATMMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=vtl_May2022ATMMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |