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Summary of significant accounting policies (Details Narrative) - USD ($) shares in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Aug. 18, 2021
Accounting Policies [Abstract] |  |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill) |  | $ 3,700 |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |
Restricted Cash | $ 0 |  | $ 580,000
Other assets | 1,800,000 | 1,800,000 |
Investment cost | 1,800,000 |  |
Unrealized Gain (Loss) on Investments | 1,731,000 |  |
Advertising expenses | $ 3,353,000 | $ 3,267,000 |
Antidilutive shares excluded from EPS computation | 322 | 236 |

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