XML 72 R59.htm IDEA: XBRL DOCUMENT
v3.25.1

Standby Equity Purchase Agreement - Narrative (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Oct. 02, 2023 USD ($) shares | Oct. 31, 2023 USD ($) | Mar. 31, 2025 USD ($) $ / shares | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) $ / shares | Dec. 31, 2023 USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.0001 |  | $ 0.0001 |
Purchase agreement period | 24 months | 24 months |  |  |  |
Purchase agreement, number of trading days used for measurement of market price | 3 days |  |  |  |  |
Standby equity purchase agreement, maximum allowable percentage of outstanding common stock | 0.1999 |  |  |  |  |
Expected draws |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |
Expected draws |  |  | 3,000 |  | 2,000 |
SEPA derivative liability |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |
SEPA derivative liability | $ 200 |  | $ 23 | $ 366 | $ 55 | $ 185
Change in unrealized gain |  |  | 32 | $ (181) |  |
Standby Equity Purchase Agreement |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |
Sale of stock, authorized amount |  | $ 30,000 | $ 30,000 |  |  |
Purchase agreement, maximum shares allowed, percentage of average daily volume | 1 |  |  |  |  |
Purchase agreement, number of days used for measurement of average daily trading volume | 10 days |  |  |  |  |
Maximum shares of common stock allowed under Purchase Agreement (in shares) | shares | 1,000,000 |  |  |  |  |
Purchase agreement, sales price, percentage of market price | 0.960 |  |  |  |  |
Purchase agreement, sales price, percentage of market price during three consecutive trading days | 0.970 |  |  |  |  |
Purchase agreement, ownership limitation | 0.0499 |  |  |  |  |
Common stock, shares authorized, standby equity purchase agreement (in shares) | shares | 5,260,704 |  |  |  |  |

X
- Definition Class Of Warrant Or Right, Ownership Limitation + References No definition available. + Details
Name: | tlsi_ClassOfWarrantOrRightOwnershipLimitation
Namespace Prefix: | tlsi_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Stock, Share Price, Average Daily Volume, Number Of Trading Days + References No definition available. + Details
Name: | tlsi_CommonStockSharePriceAverageDailyVolumeNumberOfTradingDays
Namespace Prefix: | tlsi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Stock, Share Price, Market Price, Number Of Consecutive Trading Days + References No definition available. + Details
Name: | tlsi_CommonStockSharePriceMarketPriceNumberOfConsecutiveTradingDays
Namespace Prefix: | tlsi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Stock, Share Price, Percentage Of Average Daily Volume + References No definition available. + Details
Name: | tlsi_CommonStockSharePricePercentageOfAverageDailyVolume
Namespace Prefix: | tlsi_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Stock, Shares Authorized, Standby Equity Purchase Agreement + References No definition available. + Details
Name: | tlsi_CommonStockSharesAuthorizedStandbyEquityPurchaseAgreement
Namespace Prefix: | tlsi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Sale Of Stock, Authorized Amount, Value + References No definition available. + Details
Name: | tlsi_SaleOfStockAuthorizedAmountValue
Namespace Prefix: | tlsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Share Price As Percentage Of Market Price Commencing On Advance Notice Date + References No definition available. + Details
Name: | tlsi_SharePriceAsPercentageOfMarketPriceCommencingOnAdvanceNoticeDate
Namespace Prefix: | tlsi_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share Price As Percentage Of Market Price With Advance Notice, Option Two + References No definition available. + Details
Name: | tlsi_SharePriceAsPercentageOfMarketPriceWithAdvanceNoticeOptionTwo
Namespace Prefix: | tlsi_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Standby Equity Purchase Agreement, Maximum Allowable Percentage Of Outstanding Common Stock + References No definition available. + Details
Name: | tlsi_StandbyEquityPurchaseAgreementMaximumAllowablePercentageOfOutstandingCommonStock
Namespace Prefix: | tlsi_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Standby Equity Purchase Agreement, Maximum Amount Of Shares Authorized + References No definition available. + Details
Name: | tlsi_StandbyEquityPurchaseAgreementMaximumAmountOfSharesAuthorized
Namespace Prefix: | tlsi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Standby Equity Purchase Agreement, Term + References No definition available. + Details
Name: | tlsi_StandbyEquityPurchaseAgreementTerm
Namespace Prefix: | tlsi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

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_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of input used to measure derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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/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 Reference 3: 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 + Details
Name: | us-gaap_DerivativeLiabilityMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=tlsi_MeasurementInputExpectedDrawsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=tlsi_StandbyEquityPurchaseAgreementSEPADerivativeLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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