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Note 4 - Fair Value Measurements | 12 Months Ended
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Dec. 31, 2024
Notes to Financial Statements |
Fair Value Disclosures [Text Block] | 4. FAIR VALUE MEASUREMENTS Financial assets and financial liabilities are initially recognized at fair value when the Company becomes a party to the contractual provisions of the financial instrument. Subsequently, all financial instruments are measured at either amortized cost using the effective interest method or via fair value. The financial instruments of the Company consist of cash and cash equivalents, restricted cash, accounts receivable, long-term receivables, trade payables, accrued expenses and other current liabilities, note payable, embedded derivatives, warranty liability, accrued severance pay, other long-term liabilities and long-term debt. In view of their nature, the fair value of these financial instruments approximates their carrying amounts. The Company measures the fair value of its financial assets and financial liabilities using the fair value hierarchy. A financial instrument’s classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The accounting guidance establishes a three-tiered hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value: Level 1 – Quoted prices in active markets for identical assets or liabilities. Level 2 – Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Guaranteed investment certificates are classified within Level 2 as the Company uses alternative pricing sources and models utilizing market observable inputs for valuation. The Company's convertible notes (see Note 13) contain an embedded derivative feature that was required to be bifurcated and remeasured to fair value at each reporting period based on significant inputs not observable in the market, and is classified as a Level 3 measurement according to the fair value hierarchy described above. The changes in fair value recognized as a component of finance expenses. The fair value of derivative liability was determined using a probability-weighted expected return method (“PWERM”) using the “With and Without” approach (a form of an income approach). Under this approach various scenarios were considered to trigger the change of control, conversion, and redemption scenarios constituting the embedded derivative. The PWERM analysis contains inherent assumptions related to expected stock price volatility, conversion and redemption timing, and risk-free interest rate. Due to the use of significant unobservable inputs, the overall fair value measurement of the derivative liability is classified as Level 3. The following tables set forth the fair value of the Company’s Level 1, Level 2 and Level 3 financial assets and liabilities within the fair value hierarchy, and there were no transfers between Level 1, Level 2 and Level 3 for the periods presented:
|  | Fair Value Measurements as of December 31, 2024 |
|  | Quoted Prices in Active Markets using Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |  |  | Total |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Guaranteed Investment Certificates |  | $ | — |  |  | $ | 28 |  |  | $ | — |  |  | $ | 28 |
Total assets |  | $ | — |  |  | $ | 28 |  |  | $ | — |  |  | $ | 28 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Liability |  | $ | — |  |  | $ | — |  |  | $ | 175 |  |  | $ | 175 |
Total liabilities |  | $ | — |  |  | $ | — |  |  | $ | 175 |  |  | $ | 175 |
|  | Fair Value Measurements as of December 31, 2023 |
|  | Quoted Prices in Active Markets using Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |  |  | Total |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Guaranteed Investment Certificates |  | $ | — |  |  | $ | 62 |  |  | $ | — |  |  | $ | 62 |
Total assets |  | $ | — |  |  | $ | 62 |  |  | $ | — |  |  | $ | 62 |

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 107 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-107 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 940 -SubTopic 820 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478119/940-820-50-1 + Details
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