Property, Plant and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property, Plant and Equipment [Abstract] | ||
| Property, Plant and Equipment, Gross | $ 4,346 | $ 4,256 |
| Accumulated Depreciation | (3,978) | (3,778) |
| Property, Plant and Equipment, Net | 368 | 478 |
| Production Equipment [Member] | ||
| Property, Plant and Equipment [Abstract] | ||
| Property, Plant and Equipment, Gross | 1,467 | 1,382 |
| Loaners and Demo Equipment [Member] | ||
| Property, Plant and Equipment [Abstract] | ||
| Property, Plant and Equipment, Gross | 1,554 | 1,554 |
| Computer Software and Equipment [Member] | ||
| Property, Plant and Equipment [Abstract] | ||
| Property, Plant and Equipment, Gross | 697 | 692 |
| Office Furniture & Fixtures [Member] | ||
| Property, Plant and Equipment [Abstract] | ||
| Property, Plant and Equipment, Gross | 375 | 375 |
| Leasehold Improvements [Member] | ||
| Property, Plant and Equipment [Abstract] | ||
| Property, Plant and Equipment, Gross | $ 253 | $ 253 |