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Fair Value of Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2024
Fair Value, Option, Quantitative Disclosures [Line Items] |
Schedule of company's assets that are measured at fair value on a recurring basis | The following fair value hierarchy table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis:
|  | Fair value measurement at reporting date using |
(in thousands) |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
December 31, 2024 |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |
Money market accounts |  | $ | 6,839 |  |  | $ | — |  |  | $ | — |
U.S. agency securities |  | $ | — |  |  | $ | 499 |  |  | $ | — |
Marketable securities: |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | — |  |  | $ | 2,018 |  |  | $ | — |
U.S. agency securities |  | $ | — |  |  | $ | 6,138 |  |  | $ | — |
December 31, 2023 |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |
Money market accounts |  | $ | 1,646 |  |  | $ | — |  |  | $ | — |
Marketable securities: |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | — |  |  | $ | 19,489 |  |  | $ | — |
U.S. agency securities |  | $ | — |  |  | $ | 9,294 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |  |  |
Contingent shares liability from fSight acquisition |  | $ | 527 |  |  | $ | — |  |  | $ | — |
Schedule of changes in fair value of the company's marketable securities | The following is a summary of the changes in fair value of the Company’s marketable securities as of December 31, 2024, and 2023, respectively:
|  | As of December 31, 2024 |
(in thousands) |  | Amortized cost |  |  | Unrealized gain |  |  | Unrealized loss |  |  | Fair value |
Available-for-sale marketable securities: |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 2,019 |  |  | $ | — |  |  | $ | (1 | ) |  | $ | 2,018 |
U.S. agency securities |  |  | 6,135 |  |  |  | 3 |  |  | $ | — |  |  |  | 6,138 |
Total available-for-sale marketable securities |  | $ | 8,154 |  |  | $ | 3 |  |  | $ | (1 | ) |  | $ | 8,156 |
As of December 31, 2024, all available-for-sale marketable securities consisted of investments that mature within one year.
|  | As of December 31, 2023 |
(in thousands) |  | Amortized cost |  |  | Unrealized gain |  |  | Unrealized loss |  |  | Fair value |
Available-for-sale marketable securities: |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 17,561 |  |  | $ | 2 |  |  | $ | (52 | ) |  | $ | 17,511 |
U.S. agency securities |  |  | 9,300 |  |  |  | 2 |  |  | $ | (7 | ) |  |  | 9,295 |
Total |  |  | 26,861 |  |  |  | 4 |  |  |  | (59 | ) |  |  | 26,806 |
Long-term assets |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  |  | 1,981 |  |  |  | 3 |  |  |  | (7 | ) |  |  | 1,977 |
Total |  |  | 1,981 |  |  |  | 3 |  |  |  | (7 | ) |  |  | 1,977 |
Total available-for-sale marketable securities |  | $ | 28,842 |  |  | $ | 7 |  |  | $ | (66 | ) |  | $ | 28,783 |
Schedule of changes in fair value of the company's preferred stock warrant liability | he table presented below is a summary of the changes in fair value of the Company’s preferred stock warrant liability which was exercised immediately prior to the Business Combination into Legacy Tigo preferred stock and subsequently converted into Legacy Tigo common stock. Upon the consummation of the Business Combination, such shares of Legacy Tigo common stock were converted to shares of common stock. Please see Note 3, “Merger with ROTH CH Acquisition IV Co.” for additional information.
(in thousands) |  | Fair value of preferred stock warrant liability |
Balance at December 31, 2022 |  |  | 1,507 |
Change in fair value |  |  | 501 |
Exercise of warrants |  |  | (2,008 | )
Balance at December 31, 2023 |  | $ | — |
Schedule of changes in fair value of Level 3 financial instruments | The table presented below is a summary of the changes in fair value of the Company’s Level 3 financial instruments.
(in thousands) |  | Fair value of contingent shares from fSight acquisition |  |  | Fair value of derivative liability |
Balance at December 31, 2022 |  | $ | — |  |  | $ | — |
Fair value at inception |  |  | 2,167 |  |  |  | 23,525 |
Change in fair value |  |  | 29 |  |  |  | (12,247 | )
Transfer out of level 3 |  |  | (2,196 | ) |  |  | (11,278 | )
Balance at December 31, 2023 |  | $ | — |  |  | $ | — |
Warrant Liabilities |
Fair Value, Option, Quantitative Disclosures [Line Items] |
Schedule of fair value of the warrant and derivative liabilities is estimated using the Black-Scholes option pricing model | The fair value of the warrant liabilities was estimated using the Black-Scholes option pricing model using the following assumptions:
|  | May 23, 2023 (Merger Date) |
Expected volatility |  | 68% - 70% |
Risk-free interest rate |  | 4.10% - 4.28% |
Expected term (in years) |  | 2.0 - 2.6 |
Expected dividend yield |  |  | — |
Fair value of Series C convertible preferred stock |  | $ | 1.89 |
T
Derivative Liability |
Fair Value, Option, Quantitative Disclosures [Line Items] |
Schedule of fair value of the warrant and derivative liabilities is estimated using the Black-Scholes option pricing model | The fair value of the convertible note derivative liability was estimated using the Black-Scholes option pricing model using the following assumptions:
|  | As of September 24, 2023 (1) |
Expected volatility |  |  | 58.6 | %
Risk-free interest rate |  |  | 4.9 | %
Expected term (in years) |  |  | 2.3 |
Expected dividend yield |  |  | — |
(1) The fair value of the convertible note derivative liability was remeasured on September 24, 2023, immediately prior to the execution of the Convertible Note Amendment.

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- Definition Tabular disclosure of assets, 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). + 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
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- Definition Tabular disclosure of all significant concentrations of risk, including credit risk and market risk, arising from all financial instruments (as defined), whether from an individual counterparty or groups of counterparties. The disclosure concerning concentrations of risk may consist of the following information: (1) for concentrations of credit risk disclosure may include: (a) information about the (shared) activity, region, or economic characteristic that identifies the concentration, (b) the maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity, (c) the policy of requiring collateral or other security to support financial instruments subject to credit risk, information about the entity's access to that collateral or other security, and the nature and a brief description of the collateral or other security supporting those financial instruments, and (d) the policy of entering into master netting arrangements to mitigate the credit risk of financial instruments, information about the arrangements for which the entity is a party, and a brief description of the terms of those arrangements, including the extent to which they would reduce the entity's maximum amount of loss due to credit risk and (2) for disclosure of quantitative information about the market risks of financial instruments that is consistent with the way the company manages or adjusts those risks, disclosure may include: (a) more details about current positions and perhaps activity during the period, (b) the hypothetical effects on comprehensive income (or net assets), or annual income, of several possible changes in market prices, (c) a gap analysis of interest rate re-pricing or maturity dates, (d) the duration of the financial instruments, (e) the entity's value at risk from derivatives and from other positions at the end of the reporting period and the average value at risk during the year, or (f) other ways of reporting quantitative information as internally developed. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 23 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-23 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-20 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-22 + Details
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- 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 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 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
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- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-30 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 31 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-31 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-32 + Details
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