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Note 5 - Accrued Liabilities | 6 Months Ended
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Jun. 30, 2025
Notes to Financial Statements |
Accounts Payable and Accrued Liabilities Disclosure [Text Block] | Note 5. Accrued Liabilities The components of accrued liabilities are summarized below (in thousands):
|  | June 30, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Accrued compensation and related charges |  | $ | 2,917 |  |  | $ | 2,832 |
Preferred stock dividends payable |  | $ | 2,901 |  |  | $ | 2,901 |
Payable in connection with construction in progress |  |  | 1,929 |  |  |  | 1,985 |
Accrued professional services |  |  | 609 |  |  |  | 1,460 |
Other tax payable |  |  | 573 |  |  |  | 399 |
Current portion of operating lease liabilities |  |  | 550 |  |  |  | 536 |
Accrued product warranty |  |  | 435 |  |  |  | 451 |
Accrued income taxes |  |  | 371 |  |  |  | 127 |
Advances from customers |  |  | 331 |  |  |  | 1,590 |
Other personnel-related costs |  |  | 258 |  |  |  | 256 |
Accrual for sales returns |  |  | 36 |  |  |  | 28 |
Other accrued liabilities |  |  | 1,462 |  |  |  | 1,991 |
|  | $ | 12,372 |  |  | $ | 14,556 |

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