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Note 7 - Loans Payable (Details Textual) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2021
Senior Secured Term Loan [Member] |  |
Debt Instrument, Face Amount |  | $ 4,767
Secured Convertible Loan [Member] |  |
Debt Instrument, Face Amount |  | 2,418
Consolidation Term Loan [Member] |  |
Debt Instrument, Face Amount |  | $ 7,185
Debt Instrument, Interest Rate, Stated Percentage |  | 10.00%
Percentage of Warrant Covered by Debt |  | 75.00%
Number of Warrants Covered by Debt (in shares) |  | 898,165
Acquisition Loan With Slipstream [Member] |  |
Debt Instrument, Interest Rate, Stated Percentage | 8.00% |
Percentage of Warrant Covered by Debt | 50.00% |
Number of Warrants Covered by Debt (in shares) | 833,334 |
Proceeds from Loans | $ 10,000 |
Proceeds from Loans, Net | $ 9,950 |
Slipstream [Member] |  |
Investment Owned, Balance, Percentage of Common Stock | 29.00% |

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