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v3.24.1

Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 USD ($) | Sep. 30, 2023 USD ($) | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Revenue from Contract with Customer, Excluding Assessed Tax | $ 446 | $ 438 | $ 403 | $ 441 | $ 524 | $ 344 | $ 370 | $ 417 | $ 1,728 | $ 1,655
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | Largest Customer [Member] |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  | $ 399 | $ 312
Concentration Risk, Percentage |  |  |  |  |  |  |  |  | 23.10% | 18.90%
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | Second Largest Customer [Member] |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  | $ 236 | $ 195
Concentration Risk, Percentage |  |  |  |  |  |  |  |  | 13.70% | 11.80%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two largest Customers [Member] |  |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  |  |  |  |  | 28.40% | 62.60%
Number of Customers | 2 |  |  |  | 2 |  |  |  | 2 | 2
Accounts Receivable, after Allowance for Credit Loss | $ 118 |  |  |  | $ 394 |  |  |  | $ 118 | $ 394
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 10 years |  |  |  |  |  |  |  | 10 years |
Other Capitalized Property Plant and Equipment [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 3 years |  |  |  |  |  |  |  | 3 years |
Other Capitalized Property Plant and Equipment [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 10 years |  |  |  |  |  |  |  | 10 years |

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