XML 59 R44.htm IDEA: XBRL DOCUMENT
v3.20.4

Stockholders' Equity - Summary of Preferred Stock (Details) - USD ($) | Dec. 31, 2020 | Jun. 15, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Class of Stock [Line Items] |  |  |
Preferred stock, par value (in dollars per share) | $ 0.001 |  | $ 0.001
Preferred stock, shares authorized (in shares) | 20,000,000 |  | 20,000,000
Series A Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, par value (in dollars per share) | $ 0.001 |  |
Preferred stock, shares authorized (in shares) | 277,100 |  |
Series A Convertible Preferred Stock, liquidation preference | $ 606,000 |  |
Preferred stock, shares outstanding (in shares) | 60,600 |  | 60,600
Series B Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, par value (in dollars per share) | $ 0.001 |  |
Preferred stock, shares authorized (in shares) | 8,860 |  |
Preferred stock, shares outstanding (in shares) | 0 |  | 0
Series C Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, par value (in dollars per share) | $ 0.001 |  |
Preferred stock, shares authorized (in shares) | 200,000 |  |
Preferred stock, shares outstanding (in shares) | 0 |  | 0
Series D Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, par value (in dollars per share) | $ 0.0001 |  |
Preferred stock, shares authorized (in shares) | 154,670 |  |
Preferred stock, shares outstanding (in shares) | 0 |  | 0
Series E Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, par value (in dollars per share) | $ 0.001 | $ 10 |
Preferred stock, shares authorized (in shares) | 865,824 |  |
Preferred stock, shares outstanding (in shares) | 655,044 |  | 0

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 Value of the difference between preference in liquidation and the par or stated values of the preferred shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_PreferredStockLiquidationPreferenceValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + 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(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + 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(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + 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(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=trov_SeriesAConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=trov_SeriesBConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=trov_SeriesCConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=trov_SeriesDConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=trov_SeriesEConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |