XML 38 R27.htm IDEA: XBRL DOCUMENT
v3.26.1

Fair Value Measurements (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2026
Fair Value Measurements [Abstract] |
Schedule of Company’s Liabilities that are Measured at Fair Value | The following table presents information about the Company’s liabilities that are measured at fair value as of June 30, 2026 and December 31, 2025 and indicates the fair value hierarchy of the valuation inputs the Company utilized to determine such fair value:
|  |  |  | June 30, |  |  | December 31, |
Description: |  | Level |  | 2026 |  |  | 2025 |
Derivative Liabilities: |  |  |  |  |  |  |  |
Forward purchase agreement |  | 3 |  | $ | 1,756,700 |  |  | $ | 1,388,700 |
Warrants – Series A |  | 3 |  | $ | 3,015,191 |  |  | $ | 3,383,900 |
Schedule of Fair Value Measurement of the FPA | The fair value measurement of the FPA at June 30, 2026 and December 31, 2025 was calculated using the following range of weighted average assumptions:
|  | June 30, |  |  | December 31, |
|  | 2026 |  |  | 2025 |
Risk-free interest rate |  |  | 4.00 | % |  |  | 3.48 | %
Stock price |  | $ | 9.29 |  |  | $ | 7.09 |
Expected life |  |  | 0.5 years |  |  |  | 1.1 years |
Expected volatility of underlying stock |  |  | 197.5 | % |  |  | 175.0 | %
Dividends |  |  | 0 | % |  |  | 0 | %
Schedule of Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) | The following table presents the changes in the fair value of the derivative liability associated with the Forward Purchase Agreement, measured at fair value on a recurring basis using significant unobservable inputs (Level 3), for the three and six months ended June 30, 2026:
|  | Fair Value |
|  | Measurement |
|  | Using Level 3 |
Forward Purchase Agreement |  | Inputs Total |
Balance, December 31, 2025 |  | $ | 1,388,700 |
Change in fair value |  |  | (174,600 | )
Balance, March 31, 2026 |  |  | 1,214,100 |
Change in fair value |  |  | 542,600 |
Balance, June 30, 2026 |  |  | 1,756,700 |
The following table presents the changes in the fair value of the derivative liability associated with the Series A Warrants, measured at fair value on a recurring basis using significant unobservable inputs (Level 3), for the three and six months ended June 30, 2026:
|  | Fair Value |
|  | Measurement |
|  | Using Level 3 |
Warrants – Series A |  | Inputs Total |
Balance, December 31, 2025 |  | $ | 3,383,900 |
Change in fair value |  |  | (386,750 | )
Balance, March 31, 2026 |  |  | 2,997,150 |
Change in fair value |  |  | 18,041 |
Balance, June 30, 2026 |  |  | 3,015,191 |
Schedule of Determine the Fair Value | The Company utilized a Monte Carlo simulation analysis to determine the fair value of the Series A Warrants at June 30, 2026, which included the following assumptions:
|  | Series A Warrants |
Expected term |  |  | 3.4 years |
Stock price |  | $ | 9.29 |
Risk free rate |  |  | 4.1 | %
Expected volatility |  |  | 184.1 | %
Expected dividend rate |  | $ | 0.00 |
Exercise Price |  | $ | 3.10 |

X
- Definition Tabular disclosure of fair value assumption of warrants. + References No definition available. + Details
Name: | sti_ScheduleOfFairValueAssumptionsOfWarrantsTableTextBlock
Namespace Prefix: | sti_
Data Type: | dtr:textBlockItemType
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
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: 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 Reference 2: 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 3: 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_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration