Note 5 - Property and equipment (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Property, Plant and Equipment [Abstract] | ||
| Loss on disposition of fixed assets | $ 0 | $ (16,000) |
| Fixed assets original cost | 196,000 | |
| Accumulated depreciation | 180,000 | |
| Additions to fixed assets | $ 29,000 | $ 24,000 |
| X | ||||||||||
- Definition Fixed assets original cost. No definition available.
|
| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
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