XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.25.3

Convertible Preferred Stock - Schedule of Convertible Preferred Stock (Details) | 9 Months Ended
--- | ---
Sep. 30, 2025 shares
Increase (Decrease) in Temporary Equity [Roll Forward] |
Convertible preferred stock, beginning balance (in shares) | 3,985,002
Issuances (in shares) | 0
Retirements/Conversions (in shares) | (3,985,002)
Convertible preferred stock, ending balance (in shares) | 0
Series A Convertible Preferred Stock |
Increase (Decrease) in Temporary Equity [Roll Forward] |
Convertible preferred stock, beginning balance (in shares) | 3,985,002
Issuances (in shares) | 0
Retirements/Conversions (in shares) | (3,985,002)
Convertible preferred stock, ending balance (in shares) | 0

X
- Definition Temporary Equity, Shares Issued During Period + References No definition available. + Details
Name: | tlsi_TemporaryEquitySharesIssuedDuringPeriod
Namespace Prefix: | tlsi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Temporary Equity, Stock Retired Or Converted During Period, Shares + References No definition available. + Details
Name: | tlsi_TemporaryEquityStockRetiredOrConvertedDuringPeriodShares
Namespace Prefix: | tlsi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_IncreaseDecreaseInTemporaryEquityRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: 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 2: 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(27)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_TemporaryEquitySharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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