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Note 9 - Additional Financial Statement Information 1 | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Notes to Financial Statements |  |
Additional Financial Information Disclosure [Text Block] | 9. Additional Financial Statement Information Prepaid Expenses and Other Current Assets
|  | September 30, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Prepaid expenses and other current assets |  |  |  |  |  |  |  |
Prepaid expenses |  | $ | 2,604 |  |  | $ | 1,767 |
Advances to suppliers |  |  | 228 |  |  |  | 588 |
Other current assets |  |  | 413 |  |  |  | 843 |
Total |  | $ | 3,245 |  |  | $ | 3,198 |
Accrued Expenses and Other Liabilities
|  | September 30, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Accrued expenses and other liabilities |  |  |  |  |  |  |  |
Provisions |  |  | 66 |  |  |  | 71 |
Payroll and benefits payable |  |  | 2,111 |  |  |  | 3,289 |
Other taxes payable |  |  | 5,373 |  |  |  | 3,128 |
Other |  |  | 430 |  |  |  | 451 |
Total |  | $ | 7,980 |  |  | $ | 6,939 |
Total current |  | $ | 7,481 |  |  | $ | 6,417 |
Total non-current |  | $ | 499 |  |  | $ | 522 |
Finance Costs, net
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Finance income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  | $ | — |  |  | $ | (9 | ) |  | $ | (3 | ) |  | $ | (1,597 | )
Redeemable Series X preferred stock dividends |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (97 | )
Other finance costs |  |  | (38 | ) |  |  | (29 | ) |  |  | (103 | ) |  |  | (99 | )
Interest income |  |  | 427 |  |  |  | 419 |  |  |  | 1,577 |  |  |  | 568 |
Total |  | $ | 389 |  |  | $ | 381 |  |  | $ | 1,471 |  |  | $ | (1,225 | )
| 9. Additional Financial Statement Information Prepaid Expenses and Other Current Assets
|  | December 31, |
|  | 2022 |  |  | 2021 |
Prepaid expenses and other current assets |  |  |  |  |  |  |  |
Prepaid expenses |  | $ | 1,767 |  |  | $ | 1,153 |
Advances to suppliers |  |  | 588 |  |  |  | 829 |
Other current assets |  |  | 843 |  |  |  | 713 |
Total |  | $ | 3,198 |  |  | $ | 2,695 |
Accrued Expenses and Other Liabilities
|  | December 31, |
|  | 2022 |  |  | 2021 |
Accrued expenses and other liabilities |  |  |  |  |  |  |  |
Accrued professional fees related to Merger(1) |  | $ | — |  |  | $ | 16,263 |
Provisions |  |  | 71 |  |  |  | 2,934 |
Payroll and benefits payable |  |  | 3,289 |  |  |  | 2,545 |
Other taxes payable |  |  | 3,128 |  |  |  | 2,045 |
Other |  |  | 451 |  |  |  | 2,200 |
Total |  | $ | 6,939 |  |  | $ | 25,987 |
Total current |  | $ | 6,417 |  |  | $ | 23,435 |
Total non-current |  | $ | 522 |  |  | $ | 2,552 |
(1) | Refer to Note 4 (Reverse Recapitalization) for further details on the Merger.
Finance Costs, Net
|  | Year Ended December 31, |
|  | 2022 |  |  | 2021 |  |  | 2020 |
Finance costs, net |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  | $ | (1,596 | ) |  | $ | (8,729 | ) |  | $ | (43 | )
Redeemable Series X preferred stock dividends |  |  | (97 | ) |  |  | (974 | ) |  |  | — |
Other finance costs |  |  | (123 | ) |  |  | (71 | ) |  |  | — |
Interest income |  |  | 1,164 |  |  |  | 36 |  |  |  | 78 |
Total |  | $ | (652 | ) |  | $ | (9,738 | ) |  | $ | 35 |

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