Note 4 - Certain Balance Sheet Components -10-Q (Tables)
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3 Months Ended |
12 Months Ended |
Mar. 31, 2026 |
Dec. 31, 2025 |
| Notes Tables |
|
|
| Schedule of Inventory, Current [Table Text Block] |
| | | March 31, 2026 | | | December 31, 2025 | |
| Raw materials | | $ | 6,002 | | | $ | 6,125 | |
| Work in process | | | 2,509 | | | | 2,533 | |
| Finished goods | | | 1,947 | | | | 1,478 | |
| | | $ | 10,458 | | | $ | 10,136 | |
| | | | | | | | | |
| Allowance for excess and obsolete inventory | | | (3,013 | ) | | | (2,833 | ) |
| Inventory, net | | $ | 7,445 | | | $ | 7,303 | |
|
| | | December 31, 2025 | | | December 31, 2024 | |
| Raw materials | | $ | 6,125 | | | $ | 6,319 | |
| Work in process | | | 2,533 | | | | 2,764 | |
| Finished goods | | | 1,478 | | | | 1,443 | |
| | | $ | 10,136 | | | $ | 10,526 | |
| | | | | | | | | |
| Allowance for excess and obsolete inventory | | | (2,833 | ) | | | (2,411 | ) |
| Inventories, net | | $ | 7,303 | | | $ | 8,115 | |
|
| Property, Plant, and Equipment [Table Text Block] |
| | | | | | | |
| | | March 31, 2026 | | | December 31, 2025 | |
| Equipment | | $ | 675 | | | $ | 675 | |
| Furniture and fixtures | | | 6 | | | | 6 | |
| Leasehold improvements | | | 127 | | | | 101 | |
| Total cost | | | 808 | | | | 782 | |
| | | | | | | | | |
| Less: accumulated depreciation | | | (624 | ) | | | (599 | ) |
| Property and equipment, net | | $ | 184 | | | $ | 183 | |
|
| | | December 31, 2025 | | | December 31, 2024 | |
| Equipment | | $ | 675 | | | $ | 643 | |
| Furniture and fixtures | | | 6 | | | | 6 | |
| Leasehold improvements | | | 101 | | | | 101 | |
| Total cost | | $ | 782 | | | $ | 750 | |
| | | | | | | | | |
| Less: accumulated depreciation | | | (599 | ) | | | (523 | ) |
| Property and equipment, net | | $ | 183 | | | $ | 227 | |
|
| Intangible Asset, Finite-Lived [Table Text Block] |
| | | March 31, 2026 | |
| | | Gross | | | | | | | Net | |
| | | Carrying | | | Accumulated | | | Carrying | |
| | | Amount | | | Amortization | | | Value | |
| Developed Technology | | $ | 760 | | | $ | (285 | ) | | $ | 475 | |
| Trade Name | | | 120 | | | | (108 | ) | | | 12 | |
| Total | | $ | 880 | | | $ | (393 | ) | | $ | 487 | |
| | | December 31, 2025 | |
| | | Gross | | | | | | | Net | |
| | | Carrying | | | Accumulated | | | Carrying | |
| | | Amount | | | Amortization | | | Value | |
| Developed Technology | | $ | 760 | | | $ | (269 | ) | | $ | 491 | |
| Trade Name | | | 120 | | | | (102 | ) | | | 18 | |
| Total | | $ | 880 | | | $ | (371 | ) | | $ | 509 | |
|
| | | December 31, 2025 | |
| | | Gross Carrying Amount | | | Accumulated Amortization | | | Net Carrying Value | |
| Developed Technology | | $ | 760 | | | $ | (269 | ) | | $ | 491 | |
| Trade Name | | | 120 | | | | (102 | ) | | | 18 | |
| Total | | $ | 880 | | | $ | (371 | ) | | $ | 509 | |
| | | December 31, 2024 | |
| | | Gross Carrying Amount | | | Accumulated Amortization | | | Net Carrying Value | |
| Developed Technology | | $ | 760 | | | $ | (206 | ) | | $ | 554 | |
| Trade Name | | | 120 | | | | (78 | ) | | | 42 | |
| Total | | $ | 880 | | | $ | (284 | ) | | $ | 596 | |
|
| Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] |
| | | March 31, 2026 | |
| 2026 (nine months remaining) | | $ | 66 | |
| 2027 | | | 87 | |
| 2028 | | | 82 | |
| 2029 | | | 64 | |
| 2030 | | | 63 | |
| Thereafter | | | 125 | |
| Total | | $ | 487 | |
|
| | | December 31, 2025 | |
| 2026 | | $ | 87 | |
| 2027 | | | 87 | |
| 2028 | | | 82 | |
| 2029 | | | 64 | |
| 2030 | | | 63 | |
| Thereafter | | | 126 | |
| Total | | $ | 509 | |
|
| Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] |
| | | March 31, 2026 | | | December 31, 2025 | |
| Accrued compensation | | $ | 664 | | | $ | 574 | |
| Accrued clinical and manufacturing expenses | | | 173 | | | | 190 | |
| Accrued professional and consulting services | | | 644 | | | | 594 | |
| Other liabilities, current portion | | | 499 | | | | 499 | |
| Total other accrued liabilities | | $ | 1,980 | | | $ | 1,857 | |
|
| | | December 31, 2025 | | | December 31, 2024 | |
| Accrued compensation | | $ | 574 | | | $ | 941 | |
| Accrued clinical and manufacturing expenses | | | 190 | | | | 617 | |
| Accrued professional and consulting services | | | 594 | | | | 51 | |
| Other liabilities, current portion | | | 499 | | | | 493 | |
| Total other accrued liabilities, current portion | | | 1,857 | | | | 2,102 | |
| Other liabilities, noncurrent portion | | | - | | | | - | |
| Total current and noncurrent other accrued liabilities | | $ | 1,857 | | | $ | 2,102 | |
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