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Note 6 - Income Taxes - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Unrealized loss on investments | $ 1,045 | $ 788
IRC section 174 costs | 1,566 | 822
Fixed assets | (1,111) | (1,441)
Other | 118 |
Other |  | (124)
Total deferred tax asset | 1,618 | 45
Less valuation allowance | (517) | (517)
Net deferred tax liability | $ 1,101 |
Net deferred tax liability |  | $ (472)

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