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Note 13 - Secured Convertible Notes (Details Textual) $ / shares in Units, $ in Thousands |  |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 26, 2024 USD ($) | May 30, 2024 $ / shares | Mar. 24, 2024 USD ($) $ / shares | Mar. 01, 2024 USD ($) | May 01, 2023 USD ($) | Apr. 27, 2023 USD ($) $ / shares | Dec. 31, 2023 USD ($) | May 28, 2024 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Mar. 31, 2024 USD ($) | Jun. 09, 2023 USD ($)
Amortization of Debt Issuance Costs and Discounts |  |  |  |  |  |  |  |  |  | $ 904 | $ 1,694 |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  |  |  | (13) | 0 |  |
Repayments of Convertible Debt |  |  |  |  |  |  |  |  |  | 1,990 | 1,474 |  |
Fair Value Adjustment of Warrants |  |  |  |  |  |  |  |  |  | $ (114) | $ (272) |  |
The 2023 Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Convertible Debt |  |  |  |  | $ 1,200 |  |  |  |  |  |  |  |
Debt Issuance Costs, Net |  |  |  |  | 700 |  |  |  |  |  |  |  |
Unsecured Convertible Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | $ 525 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares |  | $ 4.9 | $ 0.14 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Number of Equity Instruments |  | 107,146 | 3,750,000 |  |  |  |  |  |  |  |  |  |
Embedded Derivative, Fair Value of Embedded Derivative Liability |  |  |  |  |  |  |  |  |  |  |  | $ 159 |
Embedded Derivative, Fair Value |  |  |  |  |  |  |  | $ 242 |  |  |  |  |
Unrealized Gain (Loss) on Derivatives |  |  |  |  |  |  |  | $ 83 |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  |  |  |  |  |  | 144.00% |  |  |
Amortization of Debt Issuance Costs and Discounts |  |  |  |  |  |  |  |  |  | $ 62 |  |  |
Original Issue Discount Senior Secured Convertible Debentures [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | 3,300 |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares |  |  |  |  |  | $ 1.3 |  |  |  |  |  |  |
Debt Instrument, Convertible, Number of Equity Instruments |  | 72,528 |  |  |  | 2,538,464 |  |  |  |  |  |  |
Embedded Derivative, Fair Value |  |  |  |  |  | $ 209 |  |  |  |  |  |  | $ 169
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  |  |  |  |  |  | 173.00% |  |  |
Amortization of Debt Issuance Costs and Discounts |  |  |  |  |  |  |  |  |  | $ 800 |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  | 300 |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  |  | $ 13 |  |  |  |
Debt Instrument, Increase (Decrease), Net |  |  |  |  |  | (183) |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Amount Per Month |  |  |  |  |  | $ 193 |  |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger |  |  |  |  |  | 90.00% |  |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Trading Days |  |  |  |  |  | 10 |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage |  |  |  |  |  | 20.00% |  |  |  |  |  |  |
Repayments of Convertible Debt | $ 433 |  |  | $ 45 |  |  | $ 126 |  |  |  |  |  |
Fair Value Adjustment of Warrants |  |  |  |  | 40 |  |  |  |  |  |  |  |
Debt Issuance Costs, Net |  |  |  |  | 300 |  |  |  |  |  |  |  |
Original Issue Discount Senior Secured Convertible Debentures [Member] | The 2023 Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  | $ 300 |  |  |  |  |  |  |  |
Original Issue Discount Senior Secured Convertible Debentures [Member] | Measurement Input, Redemption in Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Amount Per Month |  |  |  |  |  | $ 193 |  |  |  |  |  |  |
Original Issue Discount Senior Secured Convertible Debentures [Member] | Post-split Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares |  | $ 45.5 |  |  |  | $ 45.5 |  |  |  |  |  |  |

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