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Revenue recognition (Details Narrative) - USD ($) $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021 | Sep. 30, 2021
Allowances for distributor product returns | $ 67 |  | $ 300
Estimated life of a particular model phone | 4 years |  |
Contract liabilities | $ 266 | $ 11 |
Other Assets [Member] |  |  |
Total capitalized costs | $ 1,682 | $ 2,345 |

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